United States' Jennifer Suhr fails in an attempt at the women's pole vault during the Athletics Indoor World Championships in Sopot, Poland, Sunday, March 9, 2014. (AP Photo/Matt Dunham)
United States' Chanelle Price celebrates winning the gold medal in the women's 800m final during the Athletics Indoor World Championships in Sopot, Poland, Sunday, March 9, 2014. (AP Photo/Alik Keplicz)
Ethiopia's Genzebe Dibaba runs to win the women's 3000m final during the Athletics World Indoor Championships in Sopot, Poland, Sunday, March 9, 2014. (AP Photo/Petr David Josek)
Ethiopia's Mohammed Aman kisses the track after winning the men's 800m final during the Athletics World Indoor Championships in Sopot, Poland, Sunday, March 9, 2014. (AP Photo/Petr David Josek)
Ethiopia's Mohammed Aman carries the national flag after winning the men's 800m final during the Athletics World Indoor Championships in Sopot, Poland, Sunday, March 9, 2014. (AP Photo/Petr David Josek)