Yerry Mina will be allowed to make a switch to Barcelona, where he will take the place of Javier Mascherano in Ernesto Valverde's squad at Camp Nou.
Barkley is out of contract with his boyhood club at the end of the season after rejecting a lucrative extension last year.
Joe Hart, Theo Walcott and Daniel Sturridge will have to carefully consider their next steps in the January transfer window with their England World Cup hopes in danger.
Jose Mourinho is keen to sign Paris Saint-Germain midfielder Lucas Moura, who has struggled for game time this season.
Marco Silva demands quality signings in the January transfer window amid links with Leicester City striker Islam Slimani.
Lewis Dunk has started every Premier League match for Chris Hughton's side this season. He has been a key figure in Brighton's back four, who have kept eight clean sheets this season.
Philippe Coutinho and Barcelona are keen to complete the transfer in January, but Liverpool are yet to give their approval.
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.
Manchester United manager Jose Mourinho's contract at Old Trafford will run down at 2019, with an option to further extend it by a year.
Mohamed Salah was crowned CAF African Player of the Year less than a month after scooping the BBC African footballer of the year award.
Jose Arnaiz has impressed after joining Barcelona this summer and interested clubs can sign him by activating €20m release clause.
Manchester United were hoping to use Inter Milan's interest in Henrikh Mkhitaryan to sign Joao Mario, who has struggled for game time under Spalletti.
Spurs boss Mauricio Pochettino must decide whether to improve his squad now or risk allowing a Champions League place to slip away.
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.
Jurgen Klopp had "nothing to say" on Philippe Coutinho's Liverpool future ahead of the FA Cup clash with Everton and also spoke about Danny Ward's immediate future.
Arsenal have confirmed the signing of Greek defender Konstantinos Mavropanos with the 20-year-old now expected to leave the club on loan.
Valencia are expected to end their interest in Everton misfit Sandro Ramirez having completed the signing of Luciano Vietto on loan from Atletico Madrid.
David Moyes' side frustrated the host for long spells and took the lead through Obiang's rasper, but Son's beauty levelled proceedings late on.
Thibaut Courtois says he is close to agreeing a new deal with Chelsea and has been urging Eden Hazard to do the same.
Palmeiras have confirmed that Barcelona have made an offer to sign Yerry Mina in January but they would rather keep the Colombia international until the summer.
Manchester United have activated 12-month contract extensions for Juan Mata, Ander Herrera, Daley Blind and Ashley Young, according to reports.
Juventus have made their interest in Can clear in recent weeks and were looking to thrash out a deal that would see him arrive this month, but their hope was quashed by Liverpool.
Barcelona have ruled out a proposal from Philippe Coutinho's agent to sign Chelsea centre-back David Luiz during the current transfer window.
Jones spent the second half of last season on loan at Championship side Barnsley but is now set to leave Merseyside on a permanent transfer.
Inter Milan manager Luciano Spalletti does not fear losing any of his players during the January window despite Ivan Perisic and Joao Mario's links with Manchester United.
Manchester United striker Romelu Lukaku suffered a head injury during United's 0-0 draw with Southampton but is ready to return against Derby.
Liverpool stars Mohamed Salah and Philippe Coutinho will miss the FA Cup fourth round clash against Everton but will return for the league clash with Manchester City.
Everton manager Sam Allardyce admits that the club were resigned to losing contract rebel Ross Barkley before he arrived and does not see that stance changing.
It has been suggested that Jose Mourinho could leave Manchester United, although reports now claim that discussions have been held over an extension to his £12m-a-year deal.