Selhurst Park defender Marc Guehi is now a key objective for the Italian club, while Bournemouth striker Antoine Semenyo has a secret exit clause, and the Blues are tracking Portuguese teenager Cardoso Varela.
Italian powerhouse Inter Milan have joined the race to acquire the signature of Crystal Palace defender Marc Guehi, but Liverpool continue to be the leading candidates to sign the 25-year-old England international.
Bournemouth forward Antoine Semenyo has included a buyout clause in his contract, but the club are keeping it private as they want to hold onto the 25-year-old Ghanaian international, who has attracted interest from Tottenham and Manchester United.
Chelsea and Barcelona are both monitoring Dinamo Zagreb's 16-year Portuguese striker Cardoso Varela, adding to the recruitment rumours around the young prospect.
Brighton have no intention to sell Cameroonian player Carlos Baleba in the winter window, even though the 21-year-old drawing interest from Manchester United during the previous window.
Manchester United have positioned Crystal Palace and England midfielder Adam Wharton, 21, ahead of Baleba on their shortlist of recruitment objectives.
Manchester United are evaluating extending Brazil midfielder Casemiro's contract past this season, but provided the 33-year-old accepts a wage cut.
Interest in Casemiro has come from Brazilian clubs and Saudi clubs, but Manchester United boss Ruben Amorim may make a case for the ex- Real Madrid star to stay.
Barcelona goalkeeper Marc-Andre ter Stegen, 33, has stated that he does not intend to depart the team, despite interest from Manchester United and Newcastle United.
Crystal Palace defender Daniel Munoz is wanted by Barcelona, yet the Eagles will refuse to let the 29-year-old Colombia international depart in January.
Former Tottenham chief Scott Munn's decision to take a role at Serie A side Parma instead of Nottingham Forest is a further indication that manager Ange Postecoglou is on shaky footing at the City Ground.
New Newcastle recruitment chief Ross Wilson will lead an review into the deal situation of the team's top players, as the team aim to avoid a recurrence of the transfer saga that saw Sweden forward Alexander Isak, 26-year-old, move to Liverpool.
Chelsea are not worried over the future of Ecuadorian talent Moises Caicedo, 23-year-old, following the very visible axing of his representative.
Caicedo is expected to be offered with a new contract by Chelsea to deter attention from Real Madrid.
Borussia Dortmund are keen on Barcelona's 17-year Spanish midfielder Guille Fernandez, who has yet to make a first-team appearance with the Spanish side.
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