Needing to adapt to a new culture, life away from home and a new language, Leon is clearly a different signing to that of Matheus Cunha, Bryan Mbeumo and Benjamin Sesko, his fellow arrivals in the summer of 2025.
As head coach Ruben Amorim has frequently outlined, Leon is a signing for the future. He’s a player with potential.
But what is he like? How has he coped with such a significant move, across continents? Who’s helping him settle into life in Manchester and inside the United dressing room?
Well, we asked his new team-mates. Keep scrolling to see what they had to say.