granite jaw professional,How to Get a Stronger Chin in Boxing | LIVESTRONG.COMOct 6, 2015 . When someone refers to your chin, beard or jaw in combat sports, they're probably not talking . Professional Boxers . At the end of the day, the difference between a granite chin and a glass jaw may come down to genetics.granite jaw professional,Fight Doctor: Big Country's Granite Chin | FIGHTLANDJun 20, 2013 . Dr. Michael Kelly: There are a few things that might account for someone having what we might call a “granite chin.” The first thing is really.
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