| Clue | Source | Date |
|---|---|---|
| Boxing brother Michael or Leon | ||
| Boxer Leon | Thomas Joseph | 21 Nov 2022 |
| Leon --, boxer who became world heavyweight champion in 1978 | The Telegraph General Knowledge | 06 May 2019 |
| Boxer Leon | ||
| Holmes successor | ||
| He beat 117-Down in 1978 | ||
| He defeated Ali | ||
| Heavyweight boxer Leon | ||
| Either of two ex-heavyweight champs | ||
| He defeated Ali: Feb. 1978 |