Sergio Martinez looking sharp hitting the mitts in training for Julio Cesar Chavez Jr. (Exclusive)
Sergio Martinez looking sharp hitting the mitts in training for Julio Cesar Chavez Jr. (Exclusive) Chris Robinson was on hand at the Knuckleheadz Gym in Ventura, CA as Argentina's Sergio Martinez hit the mitts with trainer Pablo Sarmiento ahead of his September 15th bout with Julio Cesar Chavez Jr. Check out the video for more... ***
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Sergio Gabriel Martinez
Sergio Martinez Videos
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