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Marco Contreras Of Robert Garcia Boxing Acadmey Working Mitts - esnews boxing

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Heavy Handed Alex gvozyk & Marco Contreras Working Mitts - esnews boxing

Coach Marc Contreras on Fonfara vs Smith / Crawford vs Postol - EsNews Boxing

Vasyl Lomachenko On How Marco Contreras Wraps Hands EsNews Boxing

Hard Hitting Alex Gvozdyk And Marco Contreras Working Mitts EsNews Boxing

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Canelo vs Chavez Jr - Lupe Contreras Breaks It Down - esnews boxing

Coach Marc Contreras talks new members Olympic Gold Medalist at the gym in Oxnard - esnews boxing

Alexander Besputin working with coach Marc Contreras RGBA Oxnard - EsNews Boxing

Coach Marc Contreras RGBA breaks down Canelo Chavez jr - EsNews Boxing

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Coach Marc Contreras on ABNER MARES - EsNews Boxing

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Ring Girl Reveals How She Became A Boxing Fan

Mike Tyson Likes Gervonta Davis And Buster Douglas Talks Ruiz vs Joshua 2

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Robert Garcia On Julio Cesar Chavez Jr vs Danny Jacobs

Boxing Champ David Benavidez Invites Triple C Henry Cejudo To Come Sparr Him