Brazilian Clarissa Santos falls during the Women's preliminary round group B basketball match of the London 2012 Olympic Games Australia vs Brazil at the basketball arena in London. (AFP photo / Timothy A Clary)

Croatia's Tina Mihelic falls from her dinghy in the Laser Radial sailing class at the London 2012 Olympic Games in Weymouth . (AFP photo / William West)

Portugal's Clarisse Cruz falls during the women's 3000m steeplechase heats at the athletics event of the London 2012 Olympic Games in London. (AFP / Adrian Dennis)

US Gabrielle Douglas falls off the beam during the women's beam competition of the artistic gymnastics event of the London Olympic Games at the 02 North Greenwich Arena in London. China's Deng Linlin won gold while Sui Lu won the silver medal, with Alexandra Raisman of the United States taking the bronze medal. (AFP / Ben Stansall)

Germany's Matthias Steiner is trapped by the bar as he fails an attempt during the men's +105kg group A weightlifting event of the London 2012 Olympic Games at The Excel Centre in London . (AFP / Yuri Cortez)

Cuba's Dayron Robles fails during the men's 110m hurdles final at the athletics event of the London 2012 Olympic Games in London. (AFP / Francois Xavier Marit)

Celine Wilde (Right) of Germany dribbles past Caroline Nichols of the US during the preliminary round women's field hockey match of the London 2012 Olympic Games between Germany and the US in London. (AFP / Indranil Mukherjee)