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A worker uses a machine to clean the track at the iconic Bird's Nest National Stadium as preparation for the upcoming 15th IAAF Athletics World Championship in Beijing Tuesday, Aug. 18, 2015. The sport event will be held in Beijing from Aug. 22 to 30. (AP Photo/Andy Wong)
Associated Press | August 17, 2015 4:30 pm
The big challenge to come after election for Coe or Bubka