On Friday, Fellaini helped Belgium to beat Crerand's native Scotland in a World Cup qualifier, and Crerand is now looking forward to having the big man on his side for a change.
"I'm delighted United have signed Marouane Fellaini and I think most fans should be too, because the one thing we've lacked at Manchester United in the middle of the park is somebody powerful and strong," European Cup winner Crerand told MUTV.
"I wouldn't want [Manchester City's Yaya] Toure playing against me; a big powerful guy, hard to compete with. We've got one of our own now."
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