Britain’s Jessica Ennis signals as she communicates with her coach during her women’s heptathlon high jump Group A event at the London 2012 Olympic Games at the Olympic Stadium

Britain's Jessica Ennis helped get track and field off to a strong start. (Dylan Martinez/Reuters)

Britain’s Jessica Ennis helped get track and field off to a strong start. (Dylan Martinez/Reuters)

Britain’s Jessica Ennis signals as she communicates with her coach during her women’s heptathlon high jump Group A event at the London 2012 Olympic Games at the Olympic Stadium August 3, 2012. REUTERS/Dylan Martinez (BRITAIN – Tags: OLYMPICS SPORT ATHLETICS)