For a list of confirmed transfers, check out the transfers page.
Arsenal failed in a late move to sign Lazio striker Miroslav Klose on loan on deadline day. Gunners boss Arsene Wenger saw the 35-year-old as a short-term fix to increase the Gunners' attacking options.
Manchester United discussed swapping winger Nani, 27, for Tottenham's Andros Townsend, 22, but Spurs, after initially entering discussions, rejected the deal.
Manchester City's bid for defender Eliaquim Mangala, 22, and midfielder Fernando, 26, collapsed after Porto told the Premier League leaders they would have to pay £46m to land the duo.
City will make another attempt to sign Mangala in the summer but are likely to face competition from Paris St-Germain and Manchester United.
Liverpool met the buy-out clause in the contract of Dnipro Dnipropetrovsk's Ukraine international forward Yevhen Konoplyanka, 24, members of their medical team travelled to Ukraine and Konoplyanka had agreed the terms of his move to Anfield - only for Dnipro's president, Ihor Kolomoyskyi, to refuse to sanction the player's release.
Stoke's pursuit of Sunderland midfielder Lee Cattermole, 25, broke down when Black Cats owner Ellis Short rejected their final offer of £5m.
Hull boss Steve Bruce want to make Tottenham's on-loan midfielder Jake Livermore, 24, a permanent signing in the summer.
Stoke manager Mark Hughes has had talks with on-loan Manchester City striker John Guidetti, 21, after his outburst about not starting for the Potters..
Manchester City boss Manuel Pellegrini insists he is not to blame for the hamstring injury that has ruled out top scorer Sergio Aguero, 25, for a month.
Meanwhile, ahead of his team's crunch visit to Etihad Stadium on Monday, Chelsea manager Jose Mourinho has branded Pellegrini's side "lucky" and rejects the claim of Tottenham boss Tim Sherwood that City are the best in the world.
Manager David Moyes has admitted that Robin van Persie's importance to Manchester United is so great that the forward has now been given the final say on whether he is fit to play for the club.
West Ham United have released Romanian defender Razvan Rat, just six months after he joined the Hammers. The 32-year-old made 11 Premier League starts for Sam Allardyce's side.
Newcastle manager Alan Pardew and Sunderland boss Gus Poyet have called for calm ahead of Saturday's Tyne-Wear derby at St James' Park following last season's post-match trouble.
Swansea defender Neil Taylor's proposed transfer to Fulham fell apart after his wife went into labour and the 24-year-old rushed to be with her.
Midfielder Emmanuel Frimpong has signed for Championship side Barnsley from Arsenal for an undisclosed fee and then tweeted: "How am I gonna draw girls now" - meaning he will find it difficult to attract girls - before quickly deleting his update.
League Two side Accrington Stanley showed what life is like in the lower leagues after tweeting a picture of their 48p transfer budget.