Canada's Zach Bell competes in the men's omnium 4km individual pursuit at the 2012 Summer Olympics in London, Sun. Aug. 5, 2012.Kevin Van Paassen/The Globe and Mail
Ukraine's Hanna Knyazyeva competes in the women's triple jump final during the London 2012 Olympic Games at the Olympic Stadium August 5, 2012Reinhard Krause/Reuters
Jamaica's Usain Bolt gestures before the start of the men's 100m second semi-final during the London 2012 Olympic Games at the Olympic Stadium August 5, 2012Phil Noble/Reuters
Canada's Jennifer Abel dives in the women's 3-metre springboard final at the aquatic centre in the Olympic Village during the 2012 Summer Olympics in London on Sunday, August 5, 2012Sean Kilpatrick/The Canadian Press
Italy's Andrea Baldini (L) and Japan's Kenta Chida react during their men's foil team gold medal fencing match at the ExCel venue at the London 2012 Olympic Games August 5, 2012Grigory Dukor/Reuters
Spain's Macarena Aguilar Diaz takes a shot against Norway's Ida Alstad (R) in their women's handball Preliminaries Group B match at the Copper Box venue during the London 2012 Olympic Games August 5, 2012Marko Djurica/Reuters
Kazakhstan's Marina Volnova, left, fights Kenya's Elizabeth Andiego, during the women's middleweight boxing competition at the 2012 Summer Olympics, Sunday, Aug. 5, 2012, in London.Ivan Sekretarev/The Associated Press
South Africa's Oscar Pistorius runs during his men's 400m semi-final at the London 2012 Olympic Games at the Olympic Stadium August 5, 2012Lucy Nicholson/Reuters