Cristiano Ronaldo could still wear the No 7 shirt at Manchester United, only if Edinson Cavani gives it up or the club is granted a special dispensation, SportsMail reports.
The 36-year-old’s return to Old Trafford was officially confirmed on Friday.
United and Juventus both agreed a £21.4million deal for Ronaldo.
The Portugal captain first played for the Red Devils from 2003 to 2009, scoring 118 goals in 292 games.
During that spell, Ronaldo took the club’s famous No 7 shirt, which has been previously won by club legends like George Best, Eric Cantona and David Beckham.
Following his return to the club, there is still uncertainty over whether Ronaldo will be handed his old shirt.
The No 7 shirt is currently occupied by Cavani, who held onto the number after Jadon Sancho’s arrival, with the England winger settling for the No 25 instead.
The only way Ronaldo can reclaim the shirt is if Cavani leaves the club, or if the Premier League grants special dispensation to allow the switch.
Such an allowance has never been made before so it will be first in Premier League history.