Teenage Olympian Lilly King became the face of clean competition on Monday night.
The American swimmer won gold in the 100-meter breaststroke.
After her victory, King says she felt "incredible, winning the gold and knowing I did it clean." The words were aimed at her main rival, Russian Yulia Efimova, a swimmer who was recently served a doping suspension.
King also felt that anyone with a prior doping violation should not be able to compete. This includes her US teammate, sprinter Justin Gatlin.
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