| Answer | Crossword Clue |
|---|---|
| TYSON | Youngest heavyweight champion |
| MIKETYSON | Youngest boxer to win the WBA heavyweight title |
| SELES | Youngest French Open champion |
| SELES | Youngest-ever French Open champion |
| ALKALINE | Youngest batting champion in MLB history |
| TAL | Youngest world chess champion before Kasparov |
