By Jessica Green For Mailonline
Published: 16:38 GMT, 1 March 2018 | Updated: 16:38 GMT, 1 March 2018
This is the horrifying moment a young man's arm snaps back and breaks during an arm-wrestling competition.
Two men are filmed enjoying a friendly show of strength when the contest takes a disastrous turn.
Captured in Sao Paulo, Brazil, the men are seen tugging backwards and forwards