Pacquiao-Marquez III brings to mind some other classic 3-fight rivalries in boxing history. Let's call it trilogies+ (3 or more); I'd hate to disqualify Vasquez-Marquez just because they had a 4th fight!

For the oldschoolers, there's Ali-Frazier...for the OLD-oldschoolers, there's McClarnin-Ross... Gatti-Ward...Chacon-Limon.... what do you guys think?