Related Clues:
- Longtime Frazier foe
- Former ring king
- He KO'd Quarry, 10/26/70
- Rhyming boxing champ
- Theme of this puzzle
- 'The Greatest'
- Ryan's 'Love Story' co-star
- Utmost
- See 47-Across
- See 10-Across
- Last in a long line
- 1996 Olympic torch lighter
- Extreme
- Actress MacGraw
- Sports Illustrated's 1974 Sportsman of the Year