ANDREW YATES/AFP/GettyImages
Jessica Ennis of Britain, center, competes against Dawn Harper, right, and Danielle Carruthers of the U.S., during the women's 100-meterhurdles during the Great City games in Manchester northwest England, on May 20, 2012. She is the former European and world heptathlon champion and the former world indoor pentathlon champion.
CARL COURT
British heptathlete Jessica Ennis poses in the newly unveiled British Olympic Team GB kit designed by Stella McCartney during a photo call in central London on March 22, 2012. Born Jan. 28, 1986, Ennis was reared in Sheffield by her Jamaican decorator dad her her British social worker mum.
Michael Steele
Jessica Ennis of Great Britain races to the line ahead with Karolina Tyminska of Poland in the women's 800-meter in the Pentathlon during the 14th IAAF World Indoor Championships at the Atakoy Athletics Arena on March 9, 2012, in Istanbul, Turkey.
Mustafa Ozer
Britain's Jessica Ennis, center, leads the women's pentathlon 60-meter hurdles at the 2012 IAAF World Indoor Athletics Championships in Istanbul, Turkey, on March 9, 2012.
Dieter Nagl
England's Jessica Ennis, left, competes against Sara Aerts from Belgium during the 100-meter hurdles at the women's heptathlon on May 26, 2012, in Gotzis, Austria.
Ian Walton
Jessica Ennis of Great Britain competes in the women's shot put in the women's heptathlon during the Hypomeeting Gotzis 2012 on May 26, 2012, in Gotzis, Austria.
Ian Walton
Jessica Ennis of Great Britain in action during the Women's javelin in the women's heptathlon during the Hypomeeting Gotzis 2012 at Mosle Stadium on May 27, 2012, in Gotzis, Austria.
AFP
England's Jessica Ennis, right, competes with Tatyana Chernova during the 800-meter race of the women's heptathlon on May 27, 2012, in Gotzis, Austria.
Stu Forster
Jessica Ennis of Great Britain competes in the women's high jump final during day two of the Aviva 2012 UK Olympic Trials and Championship at Alexander Stadium on June 23, 2012, in Birmingham, England.
Jamie McDonald
Jessica Ennis of Great Britain celebrates winning the Women's 100-meter Hurdles final during the Aviva 2012 UK Olympic Trials and Championship on June 23, 2012, in Birmingham, England.
Mustafa Ozer
Britain's Jessica Ennis, center, leads the women's pentathlon 60-meter hurdles at the 2012 IAAF World Indoor Athletics Championships at the Atakoy Athletics Arena in Istanbul on March 9, 2012.
Mark Dadswell
Jessica Ennis of Great Britain leads ahead of Tatyana Chernova, right, of Russia in the 800-meters in the women's heptathlon during the 13th IAAF World Athletics Championships at the Daegu Stadium on Aug. 30, 2011, in Daegu, South Korea.
Stu Forster
Jessica Ennis of Great Britain celebrates with her country's flag next to Lousie Hazel of Great Britain after competing in the 800-meters and claiming silver in the women's heptathlon during the 13th IAAF World Athletics Championships at Daegu Stadium on Aug. 30, 2011, in Daegu, South Korea.
Peter Parks
Britain's Jessica Ennis competes in the javelin throw of the women's heptathlon event at the International Association of Athletics Federations (IAAF) World Championships in Daegu, South Korea, on Aug. 30, 2011.
Adrian Dennis
Britain's Jessica Ennis competes in the long jump of the women's heptathlon event at the International Association of Athletics Federations (IAAF) World Championships in Daegu, on Aug. 30, 2011.
Michael Steele
Jessica Ennis of Great Britain competes in the women's heptathlon 200-meter during the 20th European Athletics Championships at the Olympic Stadium on July 30, 2010, in Barcelona, Spain.
Stu Forster
Jessica Ennis of Great Britain competes in the women's Heptathlon doing shot put during the 12th IAAF World Athletics Championships at the Olympic Stadium on Aug. 15, 2009, in Berlin, Germany.
