Why don’t Prem teams retire a jersey number from their club after a legend has worn it? In Sports here in North America if an all time great player gets his jersey retired it hangs up in the rafters and no one can wear that number again.
Ronaldo wore the 7 for Man U and it just feels weird seeing it being tossed around from Depay, Di maria and now Mount.
As if of all the absolute greats who have worn 7 for United you go for Ronaldo who complained that he was like a slave when they wouldn’t sell him to Madrid.
But the numbers are more linked to positions - whilst some clubs retire numbers most don’t because the numbers aren’t completely associated with one player.