The summer transfer window for Premier League clubs closed at 23:00 BST on 31 August. See all the deals that were agreed on a busy final day.
00:15 Leeds United winger Helder Costa is heading to Valencia on loan, with an option for a permanent move at the end of the season. Details
23:56 Tottenham Hotspur's 23-year-old defender Cameron Carter-Vickers has joined Celtic on loan for the season. Details
23:45 Chelsea have signed Spain international midfielder Saul Niguez from Atletico Madrid on a season-long loan with the option of a permanent transfer next summer.
The 26-year-old helped Atletico win the Spanish league title last season, playing in 33 of their 38 matches, while he has also twice been a UEFA Europa League winner.
Chelsea director Marina Granovskaia told the club's official website: "He is a proven winner, a player with huge experience and we know he will be very well-suited to the challenges that face us on all fronts in the coming year." Details
23:30 Brighton & Hove Albion centre-back Lars Dendoncker heads to Scottish side St Johnstone for the rest of the season. Details
23:18 Arsenal Academy defender Jonathan Dinzeyi is off to Carlisle United for a season-long loan spell. Details
23:14 Southampton Academy graduate Michael Obafemi has left the club, with the striker completing a permanent transfer to Swansea City. Details
The summer transfer window is now closed 🔒— Premier League (@premierleague) August 31, 2021
However, clubs can still complete transfers after 2300 BST if they have submitted a deal sheet before the deadline
More on deal sheets: https://t.co/nTCPpKW9hz pic.twitter.com/OnCF1RoLG8
23:00 Everton have signed former West Bromwich Albion and Newcastle United striker Salomon Rondon on a free transfer.
The 31-year-old, who played for Rafael Benitez at Newcastle, has signed a two-year contract with the option for a third. He has played 140 Premier League matches to date, scoring 35 goals and adding 14 assists.
Rondon told Everton's official website: “I can’t wait to pull on the shirt and be reunited with Rafa Benitez, a coach who has changed the way I understand the game. I’m really grateful for the faith he’s shown in me.” Details
23:00 Manchester City have loaned both Philippe Sandler and Patrick Roberts to French side Troyes for the season. Details
23:00 Newcastle United's Tom Allan becomes the second youngster from the club to join Scottish side Greenock Morton on loan, joining his team-mate Oisin McEntee. Details
23:00 Burnley defender Richard Nartey is heading out on loan to Mansfield Town. Details
22:53 Tottenham Hotspur's 19-year-old winger J'Neil Bennett joins League One side Crewe Alexandra on loan until January. Details
22:50 Arsenal have signed Japan international defender Takehiro Tomiyasu from Italian club Bologna on a permanent deal.
The 22-year-old has made 63 appearances in his two seasons with Bologna and has 23 international caps.
Arsenal head coach Mikel Arteta told the club's official website: "He’s a versatile defender with great defensive qualities, high technical ability and composure on the ball. He will be an important member of our squad." Details
Welcome to The Arsenal, Takehiro Tomiyasu 🇯🇵 pic.twitter.com/trL4Wq7zXW— Arsenal (@Arsenal) August 31, 2021
22:45 Liverpool forward Sheyi Ojo will spend the rest of the campaign in the Championship with Millwall. Details
22:12 Brentford's 20-year-old midfielder Jaakko Oksanen is heading to Scotland to play on loan for Greenock Morton until 3 January. Details
22:00 Only one hour to go until the deadline! Will there be any late signings?
21:50 Crystal Palace have signed Odsonne Edouard from Celtic on a four-year deal.
The 23-year-old striker scored 22 goals in 40 appearances in all competitions last season, and has struck three times this term. In total, he hit 86 goals in 179 matches for Celtic.
Palace chairman Steve Parish told the club's official website: “Odsonne is a player of proven quality. He was a player in high demand and I’m delighted he chose to join Crystal Palace as another fantastic addition to our squad.” Details
21:30 Newcastle United youngster Rodrigo Vilca will spend the first half of the season on loan with Doncaster Rovers, until January. Details
21:00 Midfielder Robbie Gotts leaves Leeds United after coming through the club's academy, moving to Barrow AFC in a permanent transfer. Details
21:00 Leicester City have loaned defender Sam Hughes to League One club Burton Albion. Details
20:35 West Ham United have signed Czech Republic international Alex Kral on a season-long loan from Spartak Moscow, with a view to making the move permanent.
A deep-lying midfielder, the 23-year-old played in four of his country's five matches at UEFA Euro 2020.
West Ham manager David Moyes told the club's official website: "He will provide good competition in the centre of midfield. He is another young, talented player who we feel has a big potential and will be capable of adapting to the demands of the Premier League." Details
20:00 Liverpool's academy midfielder Luis Longstaff will test himself in Scotland this season, having agreed a loan move to Queen's Park. Details
19:45 Brentford's 19-year-old midfielder Alex Gilbert is going to spend the season on loan with League Two side Swindon Town. Details
19:30 Andre Gray leaves Watford on loan, joining Queens Park Rangers and linking up again with Mark Warburton, who was his manager at Brentford. Details
Two other players are also on their way out of Vicarage Road, with Jaime Alvarado heading to Racing de Ferrol on loan and Marc Navarro leaving the Hornets permanently. Details
19:05 Two players have left Aston Villa on loan to spend the season in France.
Mungo Bridge will play for FC Annecy. Details
19:03 Spurs' new signing Emerson Royal is thrilled to be playing in the Premier League.
19:02 Newcastle United defender Oisin McEntee is heading out on loan to Scottish Championship side Greenock Morton. Details
19:00 Norwich City goalkeeper Aston Oxborough has joined Barnet for the 2021/22 campaign. Details
18:31 Tottenham Hotspur have signed Brazil international right-back Emerson Royal from Barcelona, subject to international clearance and a work permit.
The 22-year-old, who played in July's Copa America final against Argentina, has signed a five-year contract and will wear the No 12 shirt. Details
18:00 Leicester City have signed winger Ademola Lookman on loan from German side RB Leipzig.
The 23-year-old joins his third Premier League club after making a total of 70 appearances in the competition for Everton and Fulham.
Last season he scored four goals and added four assists in 34 top-flight matches for the Cottagers. Details
17:45 Wolverhampton Wanderers are planning for the future after snapping up Manchester City's 17-year-old defensive midfielder Harvey Griffiths on a permanent deal. Details
Meanwhile, Wolves' 23-year-old academy graduate Connor Ronan has joined Scottish side St Mirren on loan. Details
17:30 Brighton & Hove Albion have signed 20-year-old striker Abdallah Sima from Slavia Prague on a four-year deal and immediately sent him out on loan to Stoke City.
The Senegal international scored 16 goals in 33 appearances for Slavia in all competitions last season. Details
17:30 West Ham United's 21-year-old midfielder Conor Coventry has joined Championship side Peterborough United on loan. Details
16:31 Liverpool academy player Jake Cain has joined League Two side Newport County on loan. Details
16:30 Brighton & Hove Albion's 20-year-old midfielder Reda Khadra will spend the rest of the campaign on loan in the Championship with Blackburn Rovers. Details
16:15 Daniel James has joined Leeds United from Manchester United in a permanent move, signing a five-year contract.
The 23-year-old winger made 50 Premier League appearances for Man Utd, scoring six goals and providing seven assists.
Leeds' director of football Victor Orta said: “It is no secret that Daniel is a player we have been keen to acquire for a number of years and today we achieved our goal.
“As a player we feel Daniel is an excellent fit for a Marcelo Bielsa team. He is quick, direct and works hard – we look forward to him joining up with the squad, finally!” Details
16:05 Chelsea's 19-year-old academy forward Thierno Ballo will spend the season on loan with Rapid Vienna in the Austrian Bundesliga. Details
16:01 Newcastle United have signed 19-year-old forward Santiago Munoz from top-flight Mexican side Santos Laguna.
Munoz joins the Magpies' academy on an 18-month loan deal with an option for a permanent deal. He scored three goals and added three assists in his 13 league matches for his club. Details
15:01 Aston Villa have confirmed that 20-year-old centre-back Dominic Revan has joined Northampton Town on loan until January. Details
14:48 Is Nikola Vlasic going into your FPL team? He's a midfielder in the game and priced at £6.0m following his Deadline Day transfer to West Ham.
13:35 Burnley have secured the signing of Wales international Connor Roberts from Swansea City.
The right-back produced five goals and eight assists last season and becomes the club's fifth senior summer signing. Details
13:00 It's official! Cristiano Ronaldo is back in Fantasy Premier League and yours to own for £12.5m.
11:30 Brighton & Hove Albion sign versatile left-back Marc Cucurella from Getafe on a five-year deal, subject to international clearance.
The 23-year-old made 37 appearances in LaLiga last season, scoring two goals and providing three assists. Details
09:30 It's a done deal! Cristiano Ronaldo returns to Manchester United from Juventus on a two-year deal with the option of another 12 months, subject to international clearance. Details
09:03 Chelsea defender Dujon Sterling has signed a new contract with the club before joining Championship club Blackpool on a season-long loan. Details
09:00 We have our first signing of Deadline Day for the 2021 summer transfer window. West Ham United have announced the signing of Croatia forward Nikola Vlasic, formerly of Everton. The 23-year-old arrives on a five-year-deal from Russian side CSKA Moscow. Details