10. The rivalry between Bob Arum's Top Rank and Oscar dela Hoya's Golden Boy Promotions.
9. Thrilla in Manila.
8. World Wide Appeal.
7. The most effective MMA weapon is a boxing punch.
6. Marco Antonio Barrera vs. Eric "el terible" Morales.
5. Marvelous Marvin Hagler vs. Tommy "the hitman" Hearns.
4. Iron Mike Tyson
3. The most famous MMA superstar is a former WWE entertainer, Brock Lesnar.
2. PPV records.
1. MANNY PACQUIAO.