Edinson Cavani, who had worn the shirt last season and in the away win at Wolves on Sunday, will switch to No 21.
Ronaldo’s Old Trafford return was finally confirmed on Tuesday, with the Portugal star completing his dramatic move from Juventus and becoming a United player for the second time in his career.
More to follow
The club have given fans the images they’ve been waiting for after Ronaldo’s dramatic return
It is not yet known if Ronaldo will reclaim the No 7 shirt at United or take a different number