London 2012 - after losing her heptathlon world title to Russia's Tatyana Chernova last year, British heptathlete Jessica Ennis remodelled her javelin technique and reset her personal best on the way to winning Olympic gold.
London 2012 - Jessica Ennis wins the javelin throw using a remodelled technique. The British heptathlete went on to take gold at the Olympic stadium.
London 2012 - Jessica Ennis, Team GB's face of the Olympics, competing in the javelin throw during the heptathlon, in which she took gold.
London 2012 - Jessica Ennis on her way to winning heptathlon gold in the Olympic stadium before ecstatic Team GB fans.
London 2012 - Jessica Ennis of Great Britain competes in the heptathlon javelin round.
London 2012 - Team GB's gold medal-winning heptathlete Jessica Ennis competes in the javelin throw.