Olympics: Rollins leads US sweep with 100m hurdles gold
Brianna Rollins raced to a superb victory in the Olympic women's 100m hurdles here Wednesday to lead a US clean sweep of the medals.
Rollins zipped over the line in 12.48sec to win ahead of compatriot Nia Ali, who took silver in 12.59sec.
Kristi Castlin, the 28-year-old from Los Angeles, took bronze in 12.61sec.