This Saturday night in Las Vegas, Manny Pacquiao and Timothy Bradley will meet in a rematch of their controversial June 2012 bout. Excitement around this fight is far greater than it was for their first meeting two years ago.
A sequel in boxing is much more often a sure thing than in Hollywood, where Part 2 tends to be a warmed-over retread of the original script.
Muhammad Ali and Joe Frazier would have gone down in history as great heavyweight champions no matter what. But their three fights against each other pushed their legendary status to another level.
Rematches are such an integral part of boxing that picking just 10 is an invitation to fail. There are just way too many great ones to include them all.
Still, all 10 of these fights were thrilling and important to the history of the sport.