Chelsea boss Maresca said Carney Chukwuemeka is for sale and a loan deal is being sought for fellow midfielder Cesare Casadei.
Barcelona’s failed attempt to register Spain forward Dani Olmo has cast doubt on his future with the La Liga club.
Newcastle striker Alexander Isak has been regularly linked with Arsenal.
Bayer Leverkusen’s Florian Wirtz and Newcastle’s Bruno Guimaraes have both been linked with Manchester City.
January will be Manchester United boss Ruben Amorim’s first transfer window in charge and he may want to bring in a couple of players to put his stamp on the side.
Sporting striker Viktor Gyokeres worked with Amorim in Portugal and has also been linked with Arsenal as well as a move to United.
Dutch striker Joshua Zirkzee and winger Antony are among those linked with the Old Trafford exit door.
Lille forward Jonathan David is out of contract at the end of the season and has been mentioned in connection with several Premier League clubs.
Paris St-Germain forward Randal Kolo Muani has also seemingly been linked with every club under the sun.
Tottenham may be forced into the window with defenders Micky van de Ven and Cristian Romero both sidelined with injury.
Crystal Palace are in the market for a goalscorer along with Everton, who have scored only 15 league goals, fewer than any team apart from Southampton.
