New Zealand's Blair Hopping (R) is challenged by India's Sandeep Singh during their men's Group B hockey match at the Riverbank Arena. REUTERS/Dominic Ebenbichler
Leandro Damiao (2nd L) of Brazil scores a goal against New Zealand during their first round Group C match at St James' Park in Newcastle. REUTERS/Nigel Roddis
Spanish players jump into the pool during their women's A water polo match against the US at the Water Polo Arena. REUTERS/Laszlo Balogh
China's Chen Ying competes in the women's 25m pistol shooting final at the Royal Artillery Barracks. REUTERS/Mike Hutchings
Norway's Bastosz Piasecki (L, silver) celebrates with South Korea's Jinsun Jung (R, bronze) near Venezuela's Ruben Limardo Gascon (gold) during the men's epee individual fencing competition victory ceremony. REUTERS/Damir Sagolj
US goalkeeper Betsey Armstrong is hit by the ball during their women's water polo match against Spain. REUTERS/Laszlo Balogh
Australia's Lleyton Hewitt reacts during his men's singles tennis match against Serbia's Novak Djokovic at the All England Lawn Tennis Club. REUTERS/Sergio Moraes
Great Britain's Jack Oliver prepares to compete on the men's 77Kg Group B weightlifting competition at the ExCel venue. REUTERS/Suhaib Salem
New Zealand's Peter Burling and Blair Tuke sail before the fifth race of the men's 49er sailing class in Weymouth and Portland. REUTERS/Pascal Lauener
Kristian Thomas of Britain competes in the parallel bars during the men's individual all-around gymnastics final in the North Greenwich Arena. REUTERS/Brian Snyder
North Korea's Jong Sim Rim competes on the women's 69kg weightlifting competition at the ExCel venue. REUTERS/Suhaib Salem
The Ukraine women's quadruple sculls team celebrates after winning gold at Eton Dorney. REUTERS/Pool
Kohei Uchimura of Japan competes in the rings during the men's individual all-around gymnastics final in the North Greenwich Arena. REUTERS/Dylan Martinez