Follow breaking sports news every weekday with Sportsday.
For a list of confirmed transfers, check out the transfers page.
Barcelona will compete with Manchester United and Arsenal to try to sign Borussia Dortmund's Germany midfielder Ilkay Gundogan, 23.
Manchester United have renewed their interest in Galatasaray midfielder Wesley Sneijder. The Netherlands international, 29, has been linked with a move to Old Trafford for several years.
West Ham will bid for Inter Milan's Argentina striker Diego Milito. The 34-year-old's contract expires next summer and the Hammers are hoping to sign Milito for a reduced fee.
Cruzeiro's Brazilian forward Everton Ribeiro will consider a move to Manchester United, but Liverpool are also interested in the 24-year-old, who could cost £10m.
Crystal Palace manager Tony Pulis is considering a January move for Brondby's 23-year-old striker Simon Makienok. The 6ft 7in forward was also a target for previous manager Ian Holloway.
Arsenal have watched Ajax's Dutch midfielder Davy Klaassen, 20, who has been compared to Dennis Bergkamp.
Chelsea striker Samuel Eto'o, 32, will move to a Major League Soccer club in the United States once his contract comes to an end next summer.
Liverpool keeper Pepe Reina, 31, will be a £4m target for Spanish side Atletico Madrid once his season-long loan expires at Italian club Napoli.
Full story: The Sun
Liverpool captain Steven Gerrard, 33, will be out for six weeks with a hamstring problem sustained in the 4-1 win over West Ham.
Jordan Henderson is also going to miss several weeks with an ankle problem, leaving Liverpool manager Brendan Rodgers with Lucas and Joe Allen as his only fit central midfielders.
West Ham winger Stewart Downing has had ankle surgery after being injured in his side's defeat at Liverpool and is set for a 10-week spell on the sidelines.
Tottenham also have injury concerns as they fear defender Jan Vertonghen could miss the club's Christmas fixtures with an ankle problem.
Chelsea left-back Ashley Cole, 32, lost his first-team spot after the 2-0 defeat at Newcastle but he is set to return to the Blues starting line-up for the Champions League group game against Steaua Bucharest.
GLOBAL GOSSIP (from BBC Monitoring)
Manchester United playmaker Shinji Kagawa could return to German side Borussia Dortmund as club manager David Moyes is thinking of selling the 24-year-old Japanese international.
Real Madrid winger Angel Di Maria, 25, is 'very close' to joining AS Monaco this winter in a transfer deal that could reach 35m dollars (£21.2m).
Former Paris St-Germain director of football Leonardo has confirmed the club attempted to sign Real Madrid forward Cristiano Ronaldo, 28.
West Brom team-mates Shane Long and Boaz Myhill have been pictured busking during their Christmas party in Dublin.