<p>Greg "Marv" Hearne is a current heavyweight MMA Fighter and co-owner of "Diamondback Fighting Championship" Fighting Promotion. </p>

Greg "Marv" Hearne is a current heavyweight MMA Fighter and co-owner of "Diamondback Fighting Championship" Fighting Promotion.

<p>Greg "Marv" Hearne is a current heavyweight MMA Fighter and co-owner of "Diamondback Fighting Championship" Fighting Promotion.&nbsp;</p>

#4 - Heavyweight MMA Fighter Greg ”Marv” Hearne

Join Ring Announcer Dave, Arm Wrestler Matt and Boxer Isabella as we discuss all things in the combat sports world. Each week we have a special guest from the fighting community including MMA Fighters, Arm Wrestlers, Strength & Conditioning Coaches and Muay Thai Fighting Promoters.

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Join Ring Announcer Dave, Arm Wrestler Matt and Boxer Isabella as we discuss all things in the combat sports world. Each week we have a special guest from the fighting community including MMA Fighters, Arm Wrestlers, Strength &amp; Conditioning Coaches and Muay Thai Fighting Promoters.

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#4 - Heavyweight MMA Fighter Greg ”Marv” Hearne

#4 - Heavyweight MMA Fighter Greg ”Marv” Hearne