Selhurst Park defender Marc Guehi has become a key objective for the Italian club, while Bournemouth striker Antoine Semenyo holds a undisclosed buyout clause, and Chelsea are tracking Portuguese prospect Cardoso Varela.
Serie A contenders Inter Milan have joined the hunt to acquire the signature of Crystal Palace defender Marc Guehi, but Liverpool are still the frontrunners to sign the 25-year-old English international.
Bournemouth attacker Antoine Semenyo does have a buyout clause in his deal, but the club are holding it under wraps as they intend to retain the 25-year-old Ghana international, who has been linked from Tottenham and Manchester United.
Chelsea and Barcelona are both tracking Dinamo Zagreb's 16-year Portuguese forward Cardoso Varela, adding to the transfer rumours surrounding the emerging talent.
Brighton are not looking to sell Cameroonian midfielder Carlos Baleba in the winter window, even though the 21-year-old attracting interest from Manchester United last summer.
Manchester United have positioned Crystal Palace and English player Adam Wharton, 21, ahead of Baleba on their shortlist of transfer targets.
Manchester United are considering extending Brazil midfielder Casemiro's deal beyond this season, but only if the 33-year accepts a salary reduction.
Interest in Casemiro has come from Brazil and Saudi Arabia, yet Manchester United manager Ruben Amorim may make a case for the ex- Real Madrid star to stay.
Barcelona goalkeeper Marc-Andre ter Stegen, 33-year-old, has made it clear that he has no plans to depart the club, even with attention from Manchester United and Newcastle United.
Crystal Palace full-back Daniel Munoz is wanted by Barcelona, yet the club will refuse to let the 29-year-old Colombia international leave in the winter.
Former Tottenham chief Scott Munn's choice to take a role at Serie A club Parma rather than Nottingham Forest is a further indication that boss Ange Postecoglou is on uncertain ground at the City Ground.
Recently appointed Newcastle recruitment chief Ross Wilson will lead an audit into the contract status of the club's key stars, as the team aim to prevent a recurrence of the player drama that saw Sweden striker Alexander Isak, 26, move to Liverpool.
Chelsea have no concern over the long-term of Ecuadorian midfielder Moises Caicedo, 23-year-old, after the very visible axing of his agent.
Caicedo is set to be offered with a fresh deal by Chelsea to ward off interest from Real Madrid.
Borussia Dortmund are keen on Barcelona's 17-year Spanish youngster Guille Fernandez, who has not yet earn a first-team appearance with the Spanish club.