Gossip column: Diego Costa, Cesc Fabregas, Pogba, Forrest
For a list of confirmed transfers, check out the transfers page.
Visit our manager ins and outs page for a list of all the current bosses in the top five leagues in England and the Scottish Premiership.
Chelsea will sign Atletico Madrid striker Diego Costa, 25, this summer by offering £32m, a fee which will trigger a release clause.
Manchester United will face competition from local rivals Manchester City for the signature of Barcelona midfielder Cesc Fabregas. The 26-year-old former Arsenal captain is set to fall victim to a summer revamp at the Nou Camp.
Manchester City have also been linked with a £53m bid for Juventus's 21-year-old midfielder Paul Pogba, who joined the Italians from Manchester United in July 2012.
Manchester City are close to sealing a £20m deal for Porto's defensive midfielder Fernando, 26, whom they pursued in January.
Arsenal right-back Bacary Sagna, 31, is set to open talks with Manchester City after rejecting Arsenal's £80,000-a-week contract extension offer.
Everton are lining up a summer move for 22-year-old Celtic winger James Forrest. Manager Roberto Martinez is also keen to bring in 20-year-old Dundee United defender Andrew Robertson.
Chelsea have opened talks with Hamburg over 20-year-old attacker Hakan Calhanoglu, although their valuation of £7.5m is £4.5m less than the German side's.
Liverpool striker Iago Aspas, 26, wants a return to former club Celta Vigo after a disappointing debut season on Merseyside. He has made only 14 Premier League appearances, nine as a substitute.
Stoke City are chasing Besiktas striker Hugo Almeida. The 29-year-old has scored 17 goals in 52 games for Portugal.
Swansea are close to securing a deal for Valenciennes attacker Mathieu Dossevi. The 26-year-old is available on a free transfer after scoring 10 goals in 82 games for the Ligue 1 club.
Liverpool will offer unsettled Hatem Ben Arfa a way out of Newcastle with a £6m bid for the 27-year-old attacker.
Striker Wayne Rooney, 28, was at the centre of an injury mystery on Thursday after he left Manchester United's training session early and was immediately sent for scans.
Manchester City chief executive Ferran Soriano has risked opening up a rift with Louis van Gaal even before he is confirmed as Manchester United manager. Soriano claimed that Van Gaal, who has been heavily linked with the Old Trafford vacancy, alienates players wherever he works.
Manchester City will defy England coach Roy Hodgson's wishes by taking Joe Hart, 27, and James Milner, 28, to Abu Dhabi for an exhibition match at the end of the Premier League season.
Manager Alan Pardew, 52, says he will not walk away from his job at Newcastle United as fans plan a mass walk-out during Saturday's final home game of the season, against Cardiff.
Hamburg, five points away from safety in the Bundesliga, have resorted to recruiting a spiritual healer to preserve their status in the German top-flight.
Arsenal and France defender Bacary Sagna's wife Ludivine Kadri has had her Lamborghini covered in a design celebrating the forthcoming World Cup.
You can comment on the latest gossip on the BBC Sport Facebook page.