Other players have been signed by new clubs before the transfer window closes. For example, Liverpool's Trent Alexander-Arnold has joined Real Madrid for £10 million, while Manchester City's Kevin de Bruyne has moved to Napoli after a month of negotiations.
However, many players are not so fortunate. They will be leaving their current clubs and becoming free agents. Here is a list of some of the players who are affected:
Arsenal: Thomas Partey
Aston Villa: Kortney Hause, Robin Olsen (who is joining Malmo)
Bournemouth: Chris Mepham
Brentford: Josh Dasilva, Ben Mee
Brighton: No players are leaving
Chelsea: Lucas Bergstrom
Crystal Palace: Luke Plange, Jeffrey Schlupp, Joel Ward
Everton: Asmir Begovic, Dominic Calvert-Lewin, Abdoulaye Doucoure, Idrissa Gueye, Michael Keane, Mason Holgate, Joao Virginia, Ashley Young
Fulham: Tom Cairney, Kenny Tete, Carlos Vinicius, Willian
Ipswich: Elkan Baggott, Massimo Luongo
Leicester City: Jamie Vardy, Danny Ward (who is joining Wrexham)
Liverpool: No players are leaving
Manchester City: Kevin De Bruyne (has joined Napoli), Scott Carson
Manchester United: Jonny Evans (has retired), Christian Eriksen, Victor Lindelof
Newcastle United: Jamal Lewis, John Ruddy, Callum Wilson
Nottingham Forest: Wayne Hennessey, Harry Toffolo
Southampton: Adam Lallana (is retiring), Joe Lumley (is joining Bristol City), Kyle Walker-Peters
Tottenham: Fraser Forster, Sergio Reguilon, Alfie Whiteman
West Ham: Michail Antonio (his contract decision is being delayed), Aaron Cresswell, Vladimir Coufal, Lukasz Fabianski, Danny Ings, Kurt Zouma
Wolves: Craig Dawson, Pablo Sarabia, Nelson Semedo