Everton seal £13.5m deal for Niasse as Stoke smash transfer record
Everton completed one of the most significant deals on transfer deadline day with the £13.5m signing of Oumar Niasse.
In a move which inevitably raise questions over the long-term future of the much coveted Romelu Lukaku, Roberto Martínez opted to strengthen his forward line rather than address the defensive issues that have undermined his team's ambitions so far this season.
Niasse will complement the Belgian for the rest of the season, but the Merseyside club know they will be fending off interest in the former Chelsea striker come the summer.
Stoke made up for failing to land Saido Berahino by smashing their transfer record for the second time in five months by signing Porto's powerful French midfielder Giannelli Imbula for a fee that could eventually rise to £18m.
Hughes had captured Switzerland winger Xherdan Shaqiri for £12m at the end of August, but was able to splash out again to bring in Imbula, who impressed when Stoke played Porto in a pre-season friendly.
The 23-year-old was developed by Marseille before joining Porto last year and has been made available after the Portuguese club failed to reach the knockout stages of the Champions League.
Having also been frustrated over Berahino, Newcastle turned to Ivory Coast forward Seydou Doumbia to score the goals to lift them out of the bottom three.
Doumbia arrived on loan from Roma with the option to join permanently in the summer after failing to settle in Serie A following a £12m move from CSKA Moscow in January last year.
Watford rounded off a productive transfer window with the signings of France U-21 midfielder Abdoulaye Doucouré from Rennes for an undisclosed fee and highly rated Venezuelan striker Adalberto Penaranda. Both were loaned out to Watford's sister club Granada.
Those heading out of the Premier League included Arsenal defender Mathieu Debuchy, signed for £12m just two years ago, who went to Bordeaux on loan, while Sunderland let Scotland striker Steven Fletcher join Marseille, also on loan.
Swansea also signed Leroy Fer on loan from QPR.
Outside the top flight, Championship promotion challengers Middlesbrough finally signed Jordan Rhodes from Blackburn for £11m after the deal seemed to have collapsed on Sunday.
Deadline day deals
Giannelli Imbula, FC Porto - Stoke City £18m
Oumar Niasse, Lokomotiv Moscow - Everton £13.5m
Seydou Doumbia, Roma - Newcastle Loan
Abdoulaye Doucoure, Rennes - Watford Undisclosed
Adalberto Penaranda, Granada - Watford Undisclosed
Leroy Fer, QPR - Swansea Loan
Steven Fletcher, Sunderland - Marseille Loan
Mathieu Debuchy, Arsenal - Marseille Loan
Alex Pritchard, Tottenham - West Brom Loan
Federico Fazio, Tottenham - Sevilla loan
Ebou Adams, Dartford - Norwich Undisclosed
Rhoys Wiggins, Sheffield Wednesday - Bournemouth Undisclosed
Jordan Rhodes, Blackburn - Middlesbrough £11m
Brentford - Burnley £3m