Football: Cristiano Ronaldo to wear Manchester United's iconic No.7 shirt again after returning to club

Cristiano Ronaldo will wear Manchester United's famous No. 7 jersey once again following his return to Old Trafford.

The 36-year-old Portuguese forward spent six seasons at United between 2003-09, winning eight major trophies, and rejoined them this week from Juventus on a two-year deal.

Ronaldo donned the seven shirt during his first stint at the club, following in the footsteps of great United players including George Best, Bryan Robson, Eric Cantona and David Beckham.

United striker Edinson Cavani, who wore seven last season and in the 1-0 win at Wolverhampton Wanderers on Monday (NZ time), will switch to 21 - the number he wears on international duty for Uruguay.

"I wasn't sure if it would be possible to have the number seven shirt again, so I would like to say a huge thank you to Edi for this incredible gesture," Ronaldo said on United's Twitter feed.

Ronaldo could make his second debut for the club when they host Newcastle United in the Premier League on September 11 following the international break.