Manchester United signed Marouane Fellaini from Everton in a £27.5million deal after a troubling transfer deadline day for David Moyes.
There was no confirmation of the deal before the deadline of 11pm for Premier League clubs, but a statement from the Toffees shortly after the closing of the summer transfer window confirmed the deal and the price Manchester United would be paying for the 25-year-old.
Fellaini was delighted with the move and revealed the opportunity to work with David Moyes again had been a major factor in his decision to make the switch.
"I am thrilled to sign for Manchester United. 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," the Belgium international told the official Manchester United website.
"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."
Fellaini was Manchester United's only signing on a deadline day that is already being described as a disaster for the Premier League champions after one deal fell through and another is as yet unclear whether the correct paperwork was filled out in time.
Athletic Bilbao playmaker Ander Herrera was reportedly on the verge of signing for the Old Trafford club but the deal collapsed in the end and there were bizarre reports that the people who had turned up at La Liga offices to pay his £30.5million buyout clause were in fact imposters and not authorised to act on behalf of the club.
Meanwhile, a season-long loan deal for Real Madrid left-back Fabio Coentrao was still uncertain after reports in England, claiming the deal was done, conflicted with Spanish reports, which said the move was not ratified in time.