Britain's Jessica Ennis, right, crosses the finish line ahead of Canada's Jessica Zelinka, left, in the 800-meter heptathlon to win gold during the athletics in the Olympic Stadium at the 2012 Summer ... more 

Britain's Jessica Ennis, right, crosses the finish line ahead of Canada's Jessica Zelinka, left, in the 800-meter heptathlon to win gold during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Saturday, Aug. 4, 2012. (AP Photo/Anja Niedringhaus) less