how to build muscle

Jonne Koski Plays Fun CrossFit Prank on Adrian Mundwiler

Hilarious idea from Jonne.

Tag a Friend that would do try this CrossFit prank…

Jonne Koski and Adrian Mundwiler regularly train together, and are two of the top athletes in Europe. 

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Bicep pump… Anything better?! 💥

A post shared by Adrian Mundwiler (@adrianmundwiler) on