Juan Manuel Marquez's knockout of Juan Diaz in February was about as sensational as it gets. Photo / Chris Cozzone-FightWireImages.com

A weekly boxing list compiled by Michael Rosenthal. This week: We've done 10 reasons Manny Pacquiao and Floyd Mayweather Jr. are great. Now it's the turn of another great fighter, Juan Manuel Marquez.

1. Two victories over Pacquiao?: Many believe Marquez won each of his fights against Pacquiao. Officially, he drew and lost a split decision.
2. Extremely solid resume: Has faced 14 major alphabet titleholders (going 11-3-1 in 15 fights, the same number as Pacquiao).
3. Thrill factor: Has become a particularly exciting fighter late in his career.
4. Championships and titles: THE RING lightweight champion and No. 2 pound for pound. Also, won six major alphabet titles in three weight classes.
5. Willingness to fight anyone: Pacquiao, Barrera, Casamayor, Diaz, John and Juarez are only a handful of his top-quality opponents. And Mayweather is next.
6. Skills: Is a polished, complete boxer-puncher, particularly in the latter part of his career.
7. Longevity: Has remained a top-level title contender for more than 10 years.
8. Improving with age: Turned in his greatest performances – KOs of Casamayor and Diaz – at 35 years old.
9. Record: 50-4-1 (with 37 knockouts) over 16 years as a professional. He just wins.
10. Resilience: Anyone who gets knocked down three times in the first round by Pacquiao and then gets up to outbox him is tough.

Michael Rosenthal can be reached at [email protected]