China's Sun Yang compete in the men's 1500m freestyle.Kevin Van Paassen
Oleksandr Gvozdyk of Ukraine, left, and Osmar Bravo Amador of Nicaragua, fight during the men's light heavyweight boxing competition.Ng Han Guan
Paul McCartney, center, celebrates Britain's gold medal wins alongside his daughter Stella, center left, and wife Nancy Shevell, center right.Matt Dunham
The Olympic dream of South Africa’s Oscar Pistorius became a reality on Saturday when he ran in a round 1 heat in the Men’s 400 metres at the Olympic Stadium in London.DAVID GRAY/Reuters
Pistorius walks off the track with his fellow athletes after the race.David J. Phillip/The Associated Press
United States goalkeeper Amy Swensen tries to save the ball from an attempt by New Zealand during the women's hockey preliminary match.AP
Canadian fans cheer on Ryan Cochrane in the men's1500m freestyle at the 2012 Sumer Olympics in London, England.Kevin Van Paassen
Canada's Rosannagh MacLennan, centre, reacts to her result with teammate Karen Cockburn, right and coach David Ross during trampoline competition.Kevin Van Paassen
Rosie MacLennan, centre, won Canada's first gold medal of the 2012 summer Games.Kevin Van Paassen