Chelsea will watch Hakim Ziyech for the remainder of the season after failing with a bid to land the Ajax winger last month, as head coach Frank Lampard plans a summer shake-up of his squad.
Ziyech was the subject of a Chelsea approach in the last transfer window, but Ajax were adamant he had to see out the season in the Netherlands after signing a new contract in August. Ajax are, however, braced for new bids in the summer when they accept it will be far harder to keep the 26-year-old.
Jadon Sancho is also on Chelsea's radar, but his £100 million-plus (€119m) tag, and competition for him, make Ziyech an easier signing. It is thought Ziyech would cost about £42m (€50m), which would leave Lampard plenty of cash.
Lampard has spoken of wanting to add experience to his squad and Ziyech, who turns 27 next month and has played 32 times for Morocco, would provide that.
Ziyech tormented the Chelsea defence during Ajax's Champions League draw at Stamford Bridge this season, having also impressed in the semi-final tie against Tottenham Hotspur last term.
Spurs are also among his admirers, but their purchase of winger Steven Bergwijn from PSV suggests they have moved on.
Having not signed a player in either of the past two transfer windows, Lampard will have upwards of £150m (€178m) to spend and Chelsea are preparing for a high turnover of players.
Olivier Giroud and Pedro will leave, while Willian is also yet to agree a new contract past the end of the season and left-back Marcos Alonso is keen to return to Spain.
Kepa Arrizabalaga's future has been thrown into doubt by Lampard dropping the goalkeeper for the draw at Leicester City.
Chelsea decided against a move to re-sign Nathan Ake in January, but could still consider him.
Meanwhile, Sassuolo president Giovanni Carnevali wants to find out whether Chelsea intend to re-sign Jeremie Boga.
Carnevali wants to clear up Boga's situation after previously admitting Chelsea are able to bring back the winger if they so wish.
Boga scored his seventh goal for Sassuolo at the weekend, having joined the Italian club from Chelsea for £3m two years ago. It is unclear whether Chelsea have a straight buy-back option or have first refusal on the player. (© Daily Telegraph, London)