“The Portuguese superstar famously wore the legendary shirt number during his first spell at United and we can now confirm that Ronaldo will have it on his back once again”, a statement on the club’s website added.

In his first six seasons at the club, between 2003 and 2009, Ronaldo made 292 appearances and scored 118 goals, winning nine trophies including three Premier League titles and the UEFA Champions League.

The statement said, “Cristiano Ronaldo will wear no. 7 for United again, like he did between 2003 and 2009. As we all know, the no. 7 is a special number in the history of United.

“It has previously been worn by club icons like George Best, Bryan Robson, Eric Cantona and David Beckham. Now, it returns to the man who succeeded Beckham in it, Ronaldo.

“Ronaldo inherits the number from Edinson Cavani, who wore the shirt last season and in our away win at Wolverhampton Wanderers last weekend.

“As our new signing is allocated no.7, El Matador will switch to no.21, the same number our prolific striker wears for the Uruguayan national team.”