Brianna Rollins, right, wins her heat ahead of Evonne Britton during qualifying for women's 100-meter hurdles at the U.S. Olympic Track and Field Trials, Thurs., July 7, 2016, in Eugene Ore.
Brianna Rollins, right, wins her heat ahead of Evonne Britton during qualifying for women's 100-meter hurdles at the U.S. Olympic Track and Field Trials, Thurs., July 7, 2016, in Eugene Ore. Marcio Jose Sanchez AP
Brianna Rollins, right, wins her heat ahead of Evonne Britton during qualifying for women's 100-meter hurdles at the U.S. Olympic Track and Field Trials, Thurs., July 7, 2016, in Eugene Ore. Marcio Jose Sanchez AP