Transfer window gossip: Thursday
For a list of confirmed transfers, check out the transfers page.
Chelsea's decision to sell Juan Mata to Manchester United is part of a plan to land Everton's 20-year-old midfielder Ross Barkley.
Manchester United striker Wayne Rooney, 28, also linked with a move to Stamford Bridge, wants to stay at Old Trafford and the club are set to discuss a new contract with the England international once the Mata move is finalised.
Meanwhile, Chelsea and Arsenal look set to be frustrated in their pursuit of Jackson Martinez, 27, as the striker will sign a new deal at Porto.
Mourinho is said to want to use some of the funds from the sale of Mata to bring in Real Sociedad's France Under-21s wide midfielder Antoine Griezmann, 22.
Manchester United are monitoring Inter's Colombia international midfielder Fredy Guarin, 27, after his swap deal with Juventus's Mirko Vucinic fell through. Inter are thought to be interested in taking United striker Javier Hernandez, 25, in exchange.
Manchester City are hoping to bring in another defender before the transfer window closes with Porto's France international Eliaquim Mangala, 22 and Bayern Munich defender Dante, 30, - also believed to be a target for Manchester United - on their radar.
Arsenal will make a last-ditch effort to buy Schalke's 20-year-old midfielder Julian Draxler now rather than risk getting caught up in a summer bidding war.
Everton's loan move for striker Lacina Traore, 23, could be in jeopardy after his Monaco team-mate Radamel Falcao suffered a knee injury.
Liverpool are closing in on the signing of 21-year-old Egyptian winger Mohamed Salah after agreeing a £10m fee with Basel for the player.
French side Evian have emerged as contenders to sign Fulham's 30-year-old midfielder Derek Boateng.
Mirko Vucinic's move to Inter Milan could fall through, prompting Arsenal to ask Juventus to keep them informed of the 30-year-old striker's availability.
Leicester City goalkeeper Kasper Schmeichel, 27, is a £3.5m target for Italian side AC Milan.
Argentine club Independiente have told Sunderland manager Gus Poyet to end his interest in striker Facundo Parra, 28, until the summer transfer window.
Everton striker Romelu Lukaku, 20, could be asked to stand down as an ambassador for anti-racism group Kick It Out after he said Nicolas Anelka should not receive a ban for using a 'quenelle' gesture.
Belgium manager Marc Wilmots watched Manchester United's Adnan Januzaj, 18, at Old Trafford on Wednesday and still hopes to persuade the winger to represent his team at international level.
Manchester City midfielder Yaya Toure, 30, has alerted Paris St-Germain after saying he would one day be interested in playing for the French club.
Former Arsenal midfielder Cesc Fabregas, 26, says Barcelona team-mate Neymar, 21, reminds him of the legendary Johan Cruyff.
Former Blackpool defender Ian Evatt, 32, has sparked controversy after tweeting his delight following Paul Ince's sacking as the club's manager.
You can comment on the latest gossip on the BBC Sport Facebook page.