31-year-old Megan Weber of Delaware was participating in an all-female arm wrestling tournament earlier this month, to raise money for charity.

She won her first match using her right arm.  But on a rematch against the same opponent using her left arm, the other girl somehow BROKE HER ARM. 

In the video of the match, it looks more like it got dislocated at the elbow.  But Megan says she broke her humerus . . . that's the upper arm bone,