David Moyes is reunited with the Belgian international, bringing the 28-year-old midfielder to the club after Manchester United paid a 27.5 million pound transfer fee.
The Belgian international heads to Old Trafford for a 27.5 million pound fee, according to Everton, and he will be reunited with former manager David Moyes, under whom he starred at Goodison Park.
Fellaini is Moyes' first major transfer signing, and he reportedly submitted a transfer request Monday to waive any loyalty-bonus payment in order to facilitate the move, and he provides a significant boost to Manchester United's aerial game and midfield.
Fellaini is one of a few Belgian internationals who was on the move Monday, with Romelu Lukaku joining Fellaini's former side Everton on loan from Chelsea for the season and defender Toby Alderweireld leaving Ajax for Atletico Madrid.
United had also hoped to sign Leighton Baines from Moyes's former club, but the Toffees rebuffed those advances throughout the summer, with the reigning Premier League champion never meeting the 20 million pound valuation of the left back.
The Red Devils missed out on another midfield target, Athletic Bilbao's Ander Herrera, as the club did not meet his release clause.