| 2. Liga | 31/07/21 | FC Ingolstadt 04 | - | 1. FC Heidenheim 1846 | 1:2 | ||||
| 2. Liga | 06/08/22 | Hamburger SV | - | 1. FC Heidenheim 1846 | 1:0 | ||||
| 2. Liga | 01/04/23 | 1. FC Kaiserslautern | - | 1. FC Heidenheim 1846 | 2:2 | ||||
| Bundesliga | 11/01/25 | 1. FC Heidenheim 1846 | - | 1. FC Union Berlin | 2:0 |
| Thomas Leon Keller | |
| Born: | 05.08.1999 |
| Place of birth: |
München, 
Germany |
| Nationality: |
Germany
|
| Height: | 186 cm |
| Weight: | 82 kg |
| Position(s): | Centre Back Defensive Midfielder |
| Foot: | right |
