Matheus Cunha has inherited the No.10 shirt that has been stripped from Marcus Rashford ahead of his summer exit, while a trio of young hopefuls also received upgrades to reflect their growing status at the club.
It will be interesting to see what shirt number Leon is handed ahead of his debut season with the club, as he aims to secure a role in the first team from the get-go. The 18-year-old doesn't lack confidence, but there is an appreciation that he will need time to settle into his new surroundings before he can be fairly exposed to the senior spotlight.
With that in mind, here is a look at the shirt numbers he could wear this summer, while the dream choice for Bryan Mbeumo also remains available.
Bayindir is expected to leave United this summer and his number could be taken by either Andre Onana or a replacement.
1. 1 - Altay Bayindir
Bayindir is expected to leave United this summer and his number could be taken by either Andre Onana or a replacement. | Manchester United via Getty Images
The shirt number is vacant after Victor Lindelof left the club as a free agent.
2. 2 - Victor Lindelof
The shirt number is vacant after Victor Lindelof left the club as a free agent. | Manchester United via Getty Images
Mount is expected to remain at United, but he could lose his shirt number. It could be a wildcard option for Bryan Mbeumo.
3. 7 - Mason Mount
Mount is expected to remain at United, but he could lose his shirt number. It could be a wildcard option for Bryan Mbeumo. | Manchester United via Getty Images
United could sell Hojlund this summer and his number would be the dream choice for a striker.
4. 9 - Rasmus Hojlund
United could sell Hojlund this summer and his number would be the dream choice for a striker. | Manchester United via Getty Images