Ennis storms away from field despite high-jump low

100m hurdles What she did yesterday:
12.81sec is Ennis's fastest hurdles time in a heptathlon. She clocked 12.94sec at the World Championships last summer

What will she have to do in London?
12.81sec would be a good start for Ennis. She is a world-class hurdler and therefore needs to make ground on her rivals in this event

AFP