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Olympics: Cycling-BMX-Men's BMX Quarterfinals

Aug 9, 2012; London, United Kingdom; Khalen Young (AUS), #97 falls off his bike as he attempts to avoid a collision with Ea Buchely Falla (ECU), #50, and Quentin Caleyron (FRA), #14, during the men's BMX quarterfinal run in the London 2012 Olympic Games at BMX Track. Mandatory Credit: James lang-USA TODAY Sports

Olympic bloopers

Whether it's due to human error or plain old gravity, things don't always go as planned at the Olympics.