Arsenal are believed to be one of a trio of clubs trailing Newcastle goalkeeper Fraser Forster. Arsene Wenger will delay a decision on signing a new striker until he has assessed the fitness of Theo Walcott and Nicklas Bendtner. AC Milan striker Klaas-Jan Huntelaar is one option if Wenger decides to buy.
Derby County are talking with Arsenal about signing French striker Gilles Sunu on loan for the rest of the season.
Arsenal have been linked with a £7m move for Fulham's England under-21 defender Chris Smalling and are also looking at Lyon midfielder Maxime Gonalons, regarded as one of the best young players in France.
Arsenal are thought to be one of four Premier League clubs who sent scouts to watch Racing Santander midfielder Sergio Canales. Everton, Aston Villa and Tottenham also watched the 18 year-old, while Real Madrid, Inter Milan, Bayern Munich and Monaco are among the other clubs interested.
Sol Campbell has completed a shock return to Arsenal and has signed a contract until the end of the season. Campbell's arrival will hasten the departure of Philippe Senderos, who has reiterated his desire to leave the club and could join Celtic.
Newcastle could try and sign Jack Wilshere on loan, but Steve McLaren's FC Twente are also believed to be interested.
Bolivian midfielder Samuel Galindo has signed for Arsenal, according to reports, but the highly-rated 17 year-old will be loaned out to a Spanish club first as he is unlikely to be granted a work permit.
Villa and Birmingham are continuing to negotiate the £3.5m transfer of midfielder Craig Gardner. A fee has been agreed, but add-on clauses are proving to be the sticking point. Meanwhile, the club have distanced themselves from reports linking them to Rangers striker Kris Boyd.
The club are tracking Spanish midfielder Sergio Canales. The highly-rated 18 year-old plays for Racing Santander and is also being watched by Arsenal, Everton and Tottenham, as well as a number of Europe's top clubs.
Villa are reportedly tracing Sporting Gijon left-back Roberto Canella, although Wigan are set to put in a bid for the 21 year-old. John Carew continues to be the subject of transfer speculation, although Martin O'Neill has denied that he is willing to let the Norwegian go to Tottenham in exchange for Robbie Keane.
Emile Heskey could also depart as he searches for regular first-team football ahead of the World Cup, but O'Neill has said he is not looking to sell out-of-favour left-back Nicky Shorey. Nigel Reo-Coker could be on the way out, with Bolton, Blackburn, Hull and Wigan all reportedly interested in a £5m deal.
O'Neill is rumoured to be interested in bringing Jermaine Pennant back to the Premier League, while a £12m move for Kenwyne Jones is another possibility. Graham Dorrans, another transfer target, will be staying at West Brom after he signed a new deal.
Birmingham have joined Aston Villa in the race to sign Rangers striker Kris Boyd. Celtic will demand £11m for winger Aiden McGeady, while Birmingham and Aston Villa are negotiating the transfer of Craig Gardner after agreeing a £3.5m fee.
Alex McLeish has also reportedly made an offer for Standard Liege striker Milan Jovanovic, who is wanted by Liverpool, while the club are believed to be preparing a third bid for Liverpool's Ryan Babel.
Also on the radar are Sunderland's Kenwyne Jones, Tottenham's Roman Pavlyuchenko and Austrian striker Marc Janko, who is available from Red Bull Salzburg for £6.5m. The club have also been pursuing Monaco striker Frederic Nimani. Sporting Gijon midfielder Michel has already arrived for £3m.
The club have expressed an interest in Panathanaikos winger Dimitris Salpigidis, former West Ham midfielder Sekou Baradji and Hull midfielder Stephen Hunt. Teenage midfielder Eddy Gnahore has signed from Manchester City.
Meanwhile, Gary McSheffrey wants to leave after struggling to feature this season, with Sheffield United expressing an interest in taking on the winger. Leicester are believed to be interested in signing defender Martin Taylor.
Blackburn are looking to sign Villarreal's Uruguayan midfielder Sebastian Egruen on loan and have reportedly been watching Auxerre defender Kevin Malaga and Sedan centre-half Paul Baysse. Sam Allardyce has also admitted an interest in Middlesbrough winger Gary O'Neil, but will have to sell before he can bring in any new players.
Blackburn are also rumoured to be in the hunt for Aston Villa midfielder Nigel Reo-Coker and Cardiff midfielder Joe Ledley.
Allardyce is believed to be in talks with Feyernoord forward Andwele Slory over a loan deal and Algerian midfielder Amine Linganzi, who has been training at Ewood Park. Other targets include Portsmouth's Nadir Belhadj and Monaco's Eidur Gudjohnsen, who could be the subject of a £1.8m bid.
A swap deal for Stoke's James Beattie that could see Jason Roberts moving in the other direction is in the pipeline. Out-of-favour Benni McCarthy will be allowed to leave, with West Ham the latest club to show an interest.
Striker Franco di Santo has extended his loan spell from Chelsea, while Elrio van Heerden has left Blackburn after making just two substitute appearances. The South African midfielder has joined Turkish club Sivasspor.
Bolton want to buy Jamie O'Hara from Tottenham for £3m - but Fifa must first rule whether he can move again this season having just ended a loan spell at Portsmouth.
Owen Coyle admits he is interested in taking Arsenal's Jack Wilshere on loan, but has played down speculation linking him to Stoke defender Andy Wilkinson and Sheffield United's Matt Kilgallon.
Aston Villa's Nigel Reo-Coker has also been linked with the club, but Newcastle have quashed rumours that their striker Andy Carroll may join Bolton.
Chris Eagles and Tyrone Mears could join from Coyle's old club Burnley. Reports suggest Vladimir Weiss could join on loan from Manchester City, while the club are believed to be weighing up a move for David Nugent, currently on loan at - where else? - Burnley.
Real Madrid midfielder Guti and Barcelona striker Bojan Krkic may be available on loan, while the club have also been linked with Portuguese striker Nuno Gomes and Bosnian defender Safet Nadarevic. However, Coyle has decided against signing American midfielder Stuart Holden.
Coyle is optimistic of keeping hold of defender Gary Cahill, while Hamburg have joined Marseille in the chase for striker Johan Elmander. Newcastle are close to signing out-of-favour defender Danny Shittu.
Burnley are believed to be on the verge of signing Monaco striker Frederic Nimani. The France under-21 player will move on loan at first, with new manager Brian Laws then having the option to sign him for £3.5m. Laws is in talks with Portsmouth over extending David Nugent's loan deal, but has ended his interest in Sheffield United's Matthew Kilgallon.
Laws may also raid his old club Sheffield Wednesday with a £1.5m bid for their goalkeeper Lee Grant. The club could also sign Belgian international defensive midfielder Mark de Man from Germinal Beerschot.
The ghost of Owen Coyle still stalks the corridors at Turf Moor. The club's former manager risks infuriating fans further if, as reported, he makes bids for Tyrone Mears and Chris Eagles, and hijacks the club's loan move for Jack Wilshere of Arsenal.
Midfielder Stuart Holden, currently playing in the US for Houston Dynamo, is poised to go to Burnley on trial. The cash-strapped club could join the chase for Stoke striker James Beattie. Tottenham's Gareth Bale is a loan option, and the club has the option to purchase on-loan striker David Nugent from Portsmouth, although Bolton may sneak in with a bid.
Chelsea have been linked with Serbian international Nikola Zigic. The agent of the Valencia striker claims both Chelsea and Liverpool are interested. A £36m move for Wolfsburg striker Edin Dzeko has been rumoured, with Chelsea hoping to beat AC Milan to the Bosnian striker's signature.
Manchester City and Tottenham are both in the hunt for Joe Cole, whose contract talks have stalled and who is available for free in the summer.
Chelsea are reportedly interested in signing Everton's Marouane Fellaini, while Racing Santander midfielder Sergio Canales and Benfica winger Angel di Maria are other potential signings.
Chelsea have made their first big move of the window by offering Atletico Madrid £30m for striker Sergio Agüero. The club could also move for Monaco midfielder Jerko Leko and Bayern Munich's Bastian Schweinsteiger, with Franck Ribery a long-term target. Juliano Belletti has been linked with a move to Flamengo.
Leeds claim striker Jermaine Beckford has signed a pre-contract agreement with Everton and may move to Goodison in the summer, with David Moyes reportedly willing to sell James Vaughan. The club could try and sign Marseille midfielder Hatem ben Arfa.
Molde defender Knut Olav Rindaroy has arrived for a trial that could lead to a permanent move, as has Hungarian teenager Andras Gosztonyi. The club have agreed a deal with Malmo for 15-year-old defender Johan Hammar, while Everton are rumoured to be considering a £5m bid for Rennes defender Rod Fanni, who has played four times for France.
Having agreed a deal to sell defender Lucas Neill to Galatasaray for a fee of around £800,000, striker Jo has followed him to Turkey. Louis Saha could be on his way out of Goodison Park, with Arsenal potential bidders, while Marouane Fellaini is reported to have attracted the attention of Chelsea.
Everton are scouting Racing Santander midfielder Sergio Canales, and are in the hunt for Blackburn's Benni McCarthy and Olympiakos striker Matt Derbyshire. Landon Donovan has already been signed on loan.
Philippe Senderos could join from Arsenal, and Everton are also pondering a loan move for former Gunners winger Jose Antonio Reyes.
Fulham are reportedly planning a move to sign Stoke City striker James Beattie on loan. Bobby Zamora has been linked with a return to West Ham. If the striker moves on, his replacement could be either Beattie, Egyptian Mido or Crystal Palace's Victor Moses.
A loan deal for Roma's Stefano Okaka appears to have fallen through over the player's injury, so Roy Hodgson could move for Hull striker Daniel Cousin instead.
Romanian striker Florin Costea has been linked with Fulham. Meanwhile, the club could also be preparing to steal Tottenham's Jamie O'Hara from under the noses of Portsmouth, where the 23 year-old is currently on loan. Panathanaikos winger Dimitris Salpigidis is another potential target.
Hodgson could also try and sign Spurs defender Alan Hutton to boost his defence, and may also be preparing a loan bid for Arsenal's Jack Wilshere. South Korean international Seol Ki-Hyeon has left the club. The winger has agreed to join Hong Kong side South China.
Hull could swoop for Sunderland striker David Healy, while Egyptian striker Mido is another possibility, with his Zamalek team-mate Amr Zaki already having signed on loan. The club are tracking Scunthorpe midfielder Michael O'Connor, and will try to sign Tottenham defender Kyle Naughton on loan.
The club have quashed speculation that winger Stephen Hunt may be leaving, with Wolves understood to have lodged a £3.5m bid. If Hunt does leave Phil Brown may replace him with Derby winger Kris Commons, while a bid for Aston Villa's Nigel Reo-Coker is still a possibility.
Brown could make bids for Hamilton Academicals midfielder James McArthur, and is rumoured to be looking at Marlon Harewood, currently on loan at Newcastle.
However, the club's attempt to sign Felipe Caicedo from Manchester City on loan has failed, while American youngster Freddy Adu has decided to move to Greek club Aris from Benfica. Caleb Folan and Daniel Cousin could both go on loan, while Nathan Doyle has moved to Barnsley for an undisclosed fee.
Rafa Benitez has been told he will have to pay £10m to buy Kenwyne Jones after Sunderland said they would not agree to a loan deal for the striker. The club are also keeping an eye on Valencia striker Nikola Zigic and AC Milan's Klaas-Jan Huntelaar.
Despite Steven Gerrard's denial that he is thinking of leaving, doubts over his future persist. Inter Milan, Real Madrid and Manchester City are all interested.
Ryan Babel looks almost certain to leave Anfield after his Twitter outburst. Ajax, Bayern Munich, Fiorentina, Marseille and Galatasaray are all in the running for his signature, but a £9m move to Birmingham looks most likely.
Serbian international Milan Jovanovic has also revealed that Liverpool are interested in signing him. The 28-year-old striker plays for Standard Liege. Liverpool could be close to sealing a £25m move for highly-rated Bordeaux striker Marouane Chamakh.
Rafa Benitez has clinched the signing of Argentina midfielder Maxi Rodriguez from Atletico Madrid on a free transfer. Andrea Dossena has signed for Napoli for a deal worth around £4.5m, and Andriy Voronin has ended his unhappy stay at Anfield by moving to Dinamo Moscow.
Manchester City have tested the mettle of West Ham's new owners, David Sullivan and David Gold, by offering £15m for midfielder Valon Behrami.
Having signed Patrick Vieira on a six-month contract at Eastlands, Roberto Mancini has confirmed his interest in another ex-Arsenal player, Mathieu Flamini, currently at AC Milan. Fernando Gago of Real Madrid is also on Mancini's shopping list.
The agent of Fiorentina striker Adrian Mutu has claimed that Manchester City are interested in signing the player. Mancini could move for Joe Cole, who is out of contract with Chelsea at the end of the season, but Argentina winger Angel de Maria and CSKA Moscow's Milos Krasic have both rejected offers.
City are set to go head-to-head with Manchester United for the signature of Napoli midfielder Marek Hamsik. However, Mancini has played down speculation over Argentina international left-back Cristian Ansaldi, and is not interested in signing Barcelona's Zlatan Ibrahimovic.
City have reportedly joined the chase for Crystal Palace's Victor Moses, and are also reported to be tracking Racing Santander's 18-year-old midfielder Sergio Canales. Danish defender Simon Kjaer, Juventus's Giorgio Chiellini, Hamburg defender Jerome Boateng and Portsmouth's Younes Kaboul are other potential targets.
United are the latest club to take an interest in Racing Santander midfielder Sergio Canales, according to report. The 18 year-old is wanted by many of the top clubs in Europe.
Barcelona are preparing a bid for Wayne Rooney, according to reports, with Real Madrid also interested.
Sir Alex Ferguson is looking for goalkeeping cover for Edwin van der Sar. Manuel Neuer of Schalke is the latest name to be linked with the club. Sebastian Frey, Hugo Lloris and David James are also rumoured to be targets.
United are considering an £18m move for Porto defender Rolando, while the club could vie with City for the signing of Napoli midfielder Marek Hamsik. The Slovakian international is rated at £25m and Sir Alex Ferguson sees him as a long-term replacement for Paul Scholes.
Sir Alex is planning a massive summer clear-out, according to reports. Dimitar Berbatov, Nani, Anderson and Nemanja Vidic could all be sold. Nani has been touted for a exit as part of an exchange deal for Benfica winger Angel di Maria. Ben Foster is also available for £4m, according to reports, while Frederico Macheda could go to Real Zaragoza or Bologna on loan.
Ferguson could also swoop for 18-year-old Rangers defender Danny Wilson or Serbian defender Uros Cosic, and may attempt to hijack rivals Manchester City's move for Juventus defender Giorgio Chiellini. Swedish teenager Rasmus Lindgran and Norwegian defender Even Hovland will join the club on trial.
Portsmouth have apparently agreed to sign Romanian midfielder Razvan Cocis on a free transfer if the club's transfer embargo is lifted. Avram Grant could also make a loan move for Tottenham's Giovani dos Santos.
Kevin-Prince Boateng could be sold to ease Portsmouth's financial troubles, with Sunderland rumoured to be preparing a £5m bid. Nadir Belhadj could also leave, with Sporting Lisbon and Benfica said to be preparing bids.
Younes Kaboul could be the subject of an £8.8m bid by Lille. The Frenchman's former club Tottenham, Manchester City and Sunderland are also interested.
Grant has the option of recalling striker David Nugent from his loan spell at Burnley in the event that Pompey are barred from signing any new players. However, Aruna Dindane may be recalled by parent club Lens.
The most worried man at the Britannia will be goalkeeper Thomas Sorensen. Stoke have been linked with England goalkeeper Ben Foster, Newcastle's Fraser Forster and Sheffield Wednesday stopper Lee Grant, and may have rekindled their interest in signing David James from Portsmouth.
Stoke are believed to have bid £4m for Middlesbrough's Gary O'Neil, but Blackburn are also interested in the midfielder.
A £2m approach for Ruud van Nistelrooy looks like it will be unsuccessful, but Wigan's Hugo Rodallega, available for £10m, is a possibility. Stoke have also been linked with Kenwyne Jones and Emile Heskey as replacements for James Beattie, who may join Fulham. Dimitris Salpigidis, the Panathanaikos winger, has also been linked with the club.
Meanwhile, Pulis is rumoured to have entered the race for West Ham's Scott Parker, and could try and sign Barcelona prodigy Oriel Romeu on loan.
Forward Richard Cresswell has moved to Sheffield United for an undisclosed fee.
Bolo Zenden has fuelled speculation that he may leave after he told Dutch media he wants to move to PSV Eindhoven. Steve Bruce will reluctantly listen to offers for striker Kenwyne Jones, who has been linked with a £10m move to Liverpool.
Sunderand have joined the race for Sheffield United's Matt Kilgallon and have been linked again with Wigan's Maynor Figueroa, with reports suggesting Kieran Richardson may be offered as part of a swap deal.
Bruce is also thought to be preparing a bid for Portsmouth midfielder Kevin-Prince Boateng. Paraguay striker Salvador Cabanas is an option to replace Jones if he leaves, but transfer target Kevin Kuranyi has pledged his future to Schalke and will not move this window.
Middlesbrough's Adam Johnson could be heading to the Stadium of Light. Sunderland are also keeping tabs on Egyptian midfielder Shikabala, while Ivory Coast full-back Guy Demel could also move to the Stadium of Light for £5.5m.
The club could also move for Younes Kaboul of Portsmouth, Alan Hutton and David Bentley of Spurs, and Coventry goalkeeper Keiren Westwood.
Inter Milan have been linked with a £10m move for midfielder Jermaine Jenas that could involve Sulley Muntari heading in the oppostite direction. West Ham are reportedly interested in Robbie Keane, while Tottenham are believed to be one of a trio of clubs trailing Newcastle goalkeeper Fraser Forster.
Spurs could make a surprise move for Younes Kaboul, who they sold to Portsmouth in August 2008. West Ham are the latest club to have been linked with Alan Hutton, with Bordeaux right-back Mathieu Chalmé a possible replacement. Mexican Giovani dos Santos could be on the way out, with reports suggesting Galatasaray and Portsmouth are lining up a deal.
Harry Redknapp has admitted his interest in signing Real Madrid striker Ruud van Nistelrooy on a free transfer. Van Nistelrooy's arrival would hasten the departure of Roman Pavlyuchenko, although Zenit St Petersburg and have reportedly ended their interest in the Russian. Long-term target Klaas-Jan Huntelaar could also be the subject of a bid, while Tottenham could also make an £11m move for Palermo defender Simon Kjaer, also a target for Manchester City and Chelsea.
The speculation over David James refuses to die down, with reports suggesting Redknapp is preparing a last-ditch bid for the England goalkeeper. However, Brazilian club Internacional now claim midfielder Sandro will not be joining Tottenham this transfer window.
Tottenham are following Joe Cole's faltering contract negotiations with Chelsea and could be tempted into making a bid, with Cole out of contract at the end of the season.
Spurs have also been linked with Crystal Palace striker Victor Moses, Monaco's Eidur Gudjohnsen, Sporting Lisbon's Miguel Veloso, Peterborough captain George Boyd and Wigan's Maynor Figueroa.
West Ham United
Manchester City have tested the mettle of West Ham's new owners, David Sullivan and David Gold, by offering £15m for midfielder Valon Behrami.
Meanwhile, West Ham say they have offered a "special player", thought to be Ruud van Nistelrooy, a £100,000 a week contract, and are rumoured to be interested in Blackburn's Benni McCarthy, with reports suggesting they have already made a £1.2m bid.
Fulham's Bobby Zamora, Tottenham pair Alan Hutton and Robbie Keane, Monaco's Eidur Gudjohnsen, Portuguese veteran Nuno Gomes, Fiorentina's Adrian Mutu and Belarus striker Sergey Kornilenko are other names in the frame.
The club have also been linked with Robert Huth of Stoke, Belgian winger Geoffrey Hairemans, Stoke's James Beattie and Tours striker Olivier Giroud.
West Ham have reportedly put a £15m price tag on midfielder Scott Parker in an attempt to deter Liverpool, Tottenham and Stoke. Catania, Chievo and Parma are all reportedly interested in midfielder Luis Jimenez. However, Alessandro Diamanti, the club's 26-year-old striker, has dismissed reports linking him with a move to AC Milan.
Wigan are interested in Villarreal striker Marco Ruben, and will fight it out with Bolton for the signing of Manchester City's Vladimir Weiss. Gary Caldwell has joined Wigan in a deal thought to be worth around £1m, while Ivory Coast defender Steven Gohouri has signed until the end of the season.
Wigan are one of a number of clubs reportedly interested in signing Nigel Reo-Coker from Aston Villa for around £5m. A move for Mallorca forward Aritz Aduriz that could see Hugo Rodallega moving in the opposite direction is also on the cards, while Roberto Martinez is rumoured to be lining up a £4.5m bid for Sporting Gijon left-back Roberto Canella, a £4m move for Genk's Brazilian defender Joao Carlos and a £3m bid for Leicester striker Matty Fryatt.
The club have already completed the loan signing of Serbian international goalkeeper Vladimir Stojkovic, but Celtic have rebuffed an approach for striker Scott McDonald.
FC Copenhagen are interested in signing out-of-favour defender Erik Edman, Maynor Figueroa has attracted the attention of Sunderland, Oliver Kapo has completed a loan move to French side Boulogne, and Daniel de Ridder could move to Israeli side Hapoel Tel Aviv.
Wolves have completed a loan deal for Belgian international Geoffrey Mujangi-Bia, and may bid for Portsmouth striker Tommy Smith. The club are believed to have made a bid of £6.5m for Middlesbrough's highly-rated winger Adam Johnson, but Chelsea are also monitoring the situation.
Hull winger Stephen Hunt could move to Wolves, with the two clubs understood to be nearing agreement on a £3m deal, but Mick McCarthy will need special Premier League dispensation to take Tottenham's Jamie O'Hara on loan.
McCarthy is also interested in Derby's Kris Commons, Guingamp midfielder Richard Soumah and Aston Villa's Craig Gardner. However, the club's attempt to take Toulouse winger Fodé Mansaré on trial appears to have stalled.
Neil Collins has been sold to Preston for £750,000, while Richard Stearman could be a Liverpool target.