He currently plays for TSG Hoffenheim, wearing the number 7 shirt. At the international level, he represents Switzerland U21. He plays primarily as a Midfield. He stands at 185cm tall and weighs 79kg. His preferred foot is Right. His current market value is estimated at 30M €.

His most recent move was a Free from FC Basel 1893 to TSG Hoffenheim on 2025-06-30. The reported fee was 8M €.

Across 24 appearances in the Bundesliga 2025-2026, Leon Avdullahu registered 0 goals and 1 assists, while completing 16 key passes out of 1439 total passes with a passing accuracy of 53.1.