It takes grace to win a gold medal. Some athletes haven't quite shown that attribute during the 2012 Summer Olympics in London.
Australia's Kieran Govers, left, falls to the ground as he battles for possession with South Africa's Andrew Cronje during a men's field hockey preliminary match at the 2012 Summer Olympics. (July 30, 2012)
Japan's Yoshiaki Oiwa falls off his horse as he competes in the Cross Country phase of the eventing competition of the 2012 London Olympics. (July 30, 2012)
Lina Marcela Rivas of Colombia falls while competing in the women's 58-kg weightlifting competition at the 2012 Summer Olympics. (July 30, 2012)
Russian gymnast Kseniia Afanaseva falls as she performs her floor exercise during the artistic gymnastic women's team final at the 2012 Summer Olympics. (July 31, 2012)
Serbia's Alem Toskic, foreground, falls in the penalty area after being tackled by Hungary's Gabor Csaszar, background, during their men's handball preliminary match at the 2012 Summer Olympics. (Aug. 6, 2012)
Poland's Lukasz Zygadlo falls into a barrier while chasing a ball during a men's quarterfinal volleyball match against Russia at the 2012 Summer Olympics. (Aug. 8, 2012)
Bahamas's Shamar Sands falls after hitting a hurdle in the men's 100-meter hurdles during the 2012 Summer Olympics. (Aug. 7, 2012)