Selhurst Park centre-back Marc Guehi has become a primary target for the Italian club, while the Cherries striker Antoine Semenyo has a secret exit clause, and the Blues have interest in young Portuguese prospect Cardoso Varela.
Italian powerhouse Inter Milan have entered the competition to acquire the services of Crystal Palace defender Marc Guehi, though Liverpool remain the frontrunners to sign the 25-year-old English star.
Bournemouth forward Antoine Semenyo does have a buyout clause in his deal, however the club are maintaining it confidential as they aim to retain the 25-year Ghanaian player, who has attracted interest from Tottenham and Manchester United.
Chelsea and Barcelona are each watching Dinamo Zagreb's 16-year Portugal forward Cardoso Varela, adding to the transfer rumours around the young prospect.
Brighton are not looking to cash in on Cameroon player Carlos Baleba in the winter window, despite the 21-year drawing attention from Manchester United during the previous window.
Manchester United have placed Crystal Palace and England midfielder Adam Wharton, 21-year-old, ahead of Baleba on their list of recruitment objectives.
Manchester United are evaluating extending Brazilian star Casemiro's contract past this season, however only if the 33-year agrees to a salary cut.
Attention in Casemiro has come from Brazil and Saudi clubs, yet Manchester United manager Ruben Amorim may make a case for the ex- Real Madrid player to stay.
Barcelona shot-stopper Marc-Andre ter Stegen, 33-year-old, has emphasised that he does not intend to depart the team, despite interest from Manchester United and Newcastle United.
Crystal Palace full-back Daniel Munoz is wanted by Barcelona, but the club will refuse to let the 29-year-old Colombian player leave in the winter.
Former Tottenham chief Scott Munn's decision to take a role at Serie A club Parma instead of Nottingham Forest is a further sign that boss Ange Postecoglou is on uncertain ground at the club.
New Newcastle recruitment chief Ross Wilson will oversee an audit into the contract status of the team's top stars, as the team look to prevent a repeat of the player saga that saw Swedish forward Alexander Isak, 26-year-old, move to Liverpool.
Chelsea have no concern over the long-term of Ecuadorian talent Moises Caicedo, 23-year-old, after the public axing of his agent.
Caicedo is expected to be offered with a fresh deal by Chelsea to ward off interest from Real Madrid.
Borussia Dortmund are interested in Barcelona's 17-year Spain youngster Guille Fernandez, who has yet to make a senior appearance with the Spanish side.
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