Marouane Fellaini has described his delight at reuniting with former manager David Moyes after a deadline-day move to Manchester United.
The 25-year-old had been linked with the title holders for weeks before the window slammed shut, but the deal was only announced after it had closed on Monday.
Fellaini, who scored 11 goals in 31 league appearances for Everton last season, sees him reignite his working relationship with Moyes, who replaced Alex Ferguson at Old Trafford in May.
The midfielder's arrival marked just the second addition for United during the window, after Uruguay youth international full-back Guillermo Varela.
But Fellaini has immediately targeted trophies after completing his move in a deal worth £27.5million.
"I am thrilled to sign for Manchester United," he told the club's official website.
"I have known the manager for many years now and I have a lot of respect for his way of working.
"When I was given the opportunity to work with him again, I jumped at the chance.
"I had a fantastic time at Everton and I'd like to thank all the fans and staff there for everything they have done for me.
"But being a Manchester United player is something that every player dreams of and I believe that I can make a real contribution to the team's efforts to win trophies in the future."
He will now link up with the Belgium squad for their FIFA World Cup qualifier against Scotland on Friday before potentially making his United bow against Crystal Palace on September 14.
Moyes was also delighted to have sealed the deal for Fellaini and believes he will make a big impact on the champions' squad.
He added: "I have worked with Marouane for five years and I’m delighted he has decided to join Manchester United.
"He is a player with great ability and strength and I think he will make a real difference to our squad."
|Burnley 2 Watford 0: Landmark goals for Hendrick and Keane seal first win in four|
|Schmidt lauds hitman Hernandez|
|Klopp not banking on Liverpool winning title|
|Kroos plays down Ronaldo rage rumours|
|Confidence coursing through Copenhagen|
|Madrid form draws no concern for Zidane|
|Burki looking forward to ´dream´ Madrid clash|
|Juve and Higuain have work to do - Allegri|
|CSKA boss Slutski wary of Tottenham threat|
|Pochettino: Kane to return within three weeks|
|City youngster Diaz signs three-year deal|
|Aurier vows to ´continue working hard´ for PSG despite prison sentence|
|Tuchel expecting Ronaldo on top form|
|Ter Stegen eyes new Barcelona deal|
|Hazard: No excuse for Arsenal defeat|
|Cisse back in training with Auxerre|
|Hummels resumes training ahead of Atletico clash|
|Facing Barcelona´s MSN not a nightmare, insists Bravo|
|Thiago: Atletico defence best in the world|
|Alonso wants to end career at Bayern Munich|
|Ranieri went to Slimani for Porto advice|
|Draxler: Wolfsburg blocked my exit|
|Samoura defends abolishment of racism task force|
|Sampaoli backs Nasri for France recall|
|Gisdol ´twitching with joy´ at Hamburg presentation|
|Zanetti determined Inter will return to the top|
|Getafe sack Esnaider|
|Bartra happy with playing time at Dortmund|
|Aurier handed two-month prison sentence over police altercation|
|Klopp attributes Lallana´s fine form to hard work|
|Totti´s wife slams ´small man´ Spalletti|
|Guardiola has already done an amazing job at Manchester City - Alonso|
|Referees attacked by hooligans in Bosnia and Herzegovina|
|Griezmann: I am not the anti-Benzema|
|Sterling hails Guardiola´s role in goalscoring form|
|Champions League Matchday Two: Madrid look for first win in Dortmund|
|Smalling confident Rooney will bounce back|
|Vardy fears ´permanent stain against my name´ following casino incident|
|Brave Wilshere will reap rewards of loan move - Howe|
|MLS Review: Sounders surprise Galaxy, Kamara double sinks New England|
|Walcott a special case - Wenger|
|Guardiola striving for more after perfect 10|
|Chelsea risk another mid-table finish, admits Conte|
|Montella feels AC Milan lacked courage|
|Robben speaks out on injury fears|
|Fiorentina 0 AC Milan 0: Ilicic misses penalty on Montella´s return|
|Gisdol replaces Labbadia at Hamburg|
|Ibrahimovic threatened me over Pogba deal - Raiola|
|Balotelli could make Nice return against Krasnodar|
|Southampton deserved to win – Bilic|
|Podolski takes aim at Mourinho over Schweinsteiger treatment|
|Atletico midfielder Augusto suffers ACL injury|
|Sagna: More to Aguero than goals|
|Errors are urgent matter for Schalke - Weinzierl|
|Puel delighted with sublime Southampton second half|
|Simeone praises ´decisive´ Gameiro|
|Noble: West Ham can´t get any worse|
|Pjanic: I will play wherever Allegri needs me|
|West Ham 0 Southampton 3: Defensive woes pile pressure on Bilic|
|Kondogbia makes the same mistakes often – De Boer|
|Gray backed by Dyche after ban for abusive social media posts|
|Gabriel needs time to get used to Serie A - Ausilio|
|Atletico Madrid´s Gimenez and Augusto doubts for Bayern Munich clash|
|Atletico Madrid 1 Deportivo La Coruna 0: Griezmann downs 10-man Depor|
|Angry Spalletti slams Roma players´ attitude|
|Liverpool have unbelievable quality - Milner|
|Simeone´s son Giovanni scores first Serie A goal|
|Ivanovic: Chelsea let Conte down|
|Inter 1 Bologna 1: Battling Bologna end Inter streak|
|Guardiola: Top-four finish very tough for Man City|
|Rodgers expecting tough test against City and Aguero|
|Zamparini admits Balotelli interested Palermo|
|Former Swansea, Arsenal great Mel Charles dies|
|Asamoah, Rugani ruled out for up to seven weeks|
|Totti reaches 250 Serie A goals in Roma defeat|
|Alves makes LaLiga history as Valencia see off Leganes|
|Guardiola rues De Bruyne injury as Man City await scan|
|Las Palmas draw could prove costly, admits Morata|
|Gabriel explains choosing Inter over Juventus|
|Hamburg dismiss Labbadia|
|West Ham players expect Payet´s free-kick magic - Antonio|
|Man City must tell Guardiola to stop, says Toure´s agent|
|Hamsik thrilled to reach 100 Napoli goals|
|Zabaleta warns Man City over Celtic backlash|
|MLS Review: Red Bulls, Toronto into play-offs|
|´We were unlucky´ - Bale|
|Guardiola keen for Spurs test|
|Rodgers: I never fell out with Sterling|
|Wenger hails ´different´ Walcott|
|Mazzarri backs Deeney for England call-up|
|Mamelodi Sundowns and Zamalek reach CAF Champions League final|