http://olympictalk.nbcsports.com/2013/07/31/jessica-ennis-hill-withdraw-track-and-field-world-championships/
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こりゃわかりやすい有力選手欠場一覧
Aslı Çakır Alptekin (drug test) — 2012 Olympic champion, 1,500 meters
Nijel Amos (injury) — 2012 Olympic silver medalist, 800 meters
Ryan Bailey (injury) — 2012 Olympics fifth place, 100 meters
Yohan Blake (injury) — 2011 world champion, 100 meters
Tatyana Chernova (injury) — 2011 world champion, heptathlon
Vivian Cheruiyot (extended break) — 2011 world champion, 5,000 meters, 10,000 meters
Veronica Campbell-Brown (drug test) — nine-time world championship sprint medalist
Walter Dix (injury) — 2011 world silver medalist, 100 meters, 200 meters
Jessica Ennis-Hill (injury) — 2012 Olympic champion, heptathlon
Tyson Gay (drug test) — 2007 world champion, 100 meters, 200 meters
Phillips Idowu (extended break) — 2009 world champion, triple jump
Lolo Jones (did not qualify) — 2012 Olympics fourth place, 100-meter hurdles
Abel Kirui (injury) — 2009, 2011 world champion, marathon
Liu Xiang (injury) — 2007 world champion, 110-meter hurdles
Taoufik Makhloufi (illness) — 2012 Olympic champion, 1,500 meters
Oscar Pistorius (trial) — 2011 world silver medalist, 4×400-meter relay
Asafa Powell (did not qualify) — 2007, 2009 world bronze medalist, 100 meters
Sanya Richards-Ross (injury) — 2009 world champion, 400 meters
Dayron Robles (banned by Cuba) — 2008 Olympic champion, 110-meter hurdles
David Rudisha (injury) — 2011 world champion, 800 meters
Caster Semenya (did not qualify) — 2009 world champion, 800 meters
Sherone Simpson (drug test) — 2008 Olympic silver medalist, 100 meters
Barbora Spotakova (childbirth) — 2008, 2012 Olympic champion, javelin
Andy Turner (injury) — 2011 world bronze medalist, 110-meter hurdles
Blanka Vlasic (injury) — 2007/2009 world champion, high jump