Chelsea coach Antonio Conte expressed his admiration for Arturo Vidal and Arsenal forward Alexis Sanchez last week.
The Chelsea boss could not hide his contempt for Jose Mourinho after the Blues' goalless draw with Norwich in the third round of the FA Cup.
Arsenal would be willing to sell Sanchez for a fee no less than £35m provided they are able to sign Riyad Mahrez as replacement.
Live coverage as Norwich City host Premier League champions Chelsea in the third round of the FA Cup.
Chelsea manager Antonio Conte is keen to strengthen his squad in this window after falling behind in the race for the Premier League title.
Jose Mourinho admitted he does not act like a clown on the touchline and Antonio Conte crticised Manchester United manager when asked about the latter's comments.
Juventus CEO Giuseppe Marotta has confirmed that they will not stand in the way of any player who wants to leave the club, with Manchester United and Chelsea keen on Sandro.
Barkley joins for a fee of £15m plus add-ons and has put pen-to-paper on a five-and-a-half-year contract with the Premier League champions.
Arsene Wenger will be absent from the touchline for Arsenal's matches against Nottingham Forest, Chelsea and Bournemouth after being handed a three-game FA ban and fined £40,000.
Hazard was substituted with 10 minutes to go during Chelsea's 2-2 draw with Arsenal and looked in some discomfort as he trudged off in midweek.
Monaco insist they will not sell their key players during the January transfer with with Liverpool, Arsenal and Chelsea interested in Thomas Lemar.
Blues boss Conte thinks his side have taken advantage of a "good opportunity" in buying Barkley, whose move will be finalised by the end of the week.
Sead Kolasinac, Nacho Monreal, Aaron Ramsey, Laurent Koscielny and Olivier Giroud will remain on the sidelines for the Arsenal trip to Nottingham Forest due to different injuries.
City were close to completing a deal for Sanchez last summer but the Gunners backed out after being unable to find a replacement.
Woodburn is set to link up with his old Wales manager Chris Coleman, who has contacted Chelsea with a view to loaning some of their unwanted fringe players.
Seri was close to a move to Barcelona in the summer but now has designs on a move to the Premier League.
Barkley is out of contract with his boyhood club at the end of the season after rejecting a lucrative extension last year.
Ike Ugbo, recalled from Barnsley on Wednesday, claims the development of the likes of Dele Alli and Benik Afobe inspired him to join MK Dons for the rest of the season.
Everton manager Sam Allardyce recently confirmed that the Toffees are resigned to losing the 24-year-old, whether it be this month or at the end of the season.
West Ham United striker Andy Carroll failed to start even a single game in the month of December. He has already expressed his frustration of sitting on the bench.
Thibaut Courtois says he is close to agreeing a new deal with Chelsea and has been urging Eden Hazard to do the same.
Barcelona have ruled out a proposal from Philippe Coutinho's agent to sign Chelsea centre-back David Luiz during the current transfer window.