Leon previously donned the number 37 during his time at his former club and wore number 4 while representing Paraguay’s Under-20 national team.
At United, the number 30 jersey has been worn by notable players such as John O’Shea and Guillermo Varela. It was recently vacated by goalkeeper Nathan Bishop, who departed from United in 2023 and has since transitioned from Sunderland to AFC Wimbledon.
