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BEIJING, CHINA - MAY 20: Michael Rodgers of the United States competes in the Men's 100m during the 2015 IAAF World Challenge Beijing at National Stadium on May 20, 2015 in Beijing, China. (Photo by Lintao Zhang/Getty Images)

BEIJING, CHINA - MAY 20: Michael Rodgers of the United States competes in the Men's 100m during the 2015 IAAF World Challenge Beijing at National Stadium on May 20, 2015 in Beijing, China.  (Photo by Lintao Zhang/Getty Images)