Related Clues:

• See 28-Down
• Loser to Norton, 1973
• The Lion of God
• 'When We Were Kings' subject
• Subject of a 1996 Oscar-winning documentary
• Poetic pugilist
• See 3-Down
• Winner of 10/30/74
• The self-proclaimed 'Greatest'
• Clay, now
• 'Aladdin' prince
• 'The Martyrdom of ___' (classic Muslim work)
• See 28-Across
• Ring king
• Frazier foe