United States' Kristi Castlin reacts after the start of a Women's 60m hurdles first round heat during the World Indoor Athletics Championships in Istanbul, Turkey, Friday, March 9, 2012. (AP ... more 
United States' Kristi Castlin reacts after the start of a Women's 60m hurdles first round heat during the World Indoor Athletics Championships in Istanbul, Turkey, Friday, March 9, 2012. (AP Photo/Michael Probst) less 
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Associated Press | Photo By Michael Probst
Fri, Mar 9, 2012 2:34 PM EST