Middleweight beltholder Peter Quillin could soon defend his WBO title against promotional stablemate Danny Jacobs.
Part of the crossover appeal of this Saturday’s Floyd Mayweather-Canelo Alvarez showdown is that both fighters are unbeaten in more than 40 bouts. RingTV.com’s resident historian Lee Groves compiled his choice of the 10 most notable clashes between unbeaten fighters. Today, Nos. 10 through 6.