How did Martinez get in shape to knock out Williams and Dzinzirik? Now you know!
You may remember it from one of Elie Seckbach's videos.
You may remember it from one of Elie Seckbach's videos.
GFlex is what I use when I need to be in the best shape of my life for a championship fight! I can very quickly and intensely train every part of my body in a short period of time anywhere I go.
-Sergio Martinez
-Sergio Martinez
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