A look at Olympians who made successful switches into mixed martial arts, including Daniel Cormier, Ronda Rousey, and Henry ...

Halfdark / Getty Images Thanks to Reebok commercials that aired before the 1992 Summer Olympics, America knew that Dan O’Brien could sprint 100 meters in 10.3 seconds and fling a discus 172 feet.

Diamond League CEO Petr Stastny is welcoming competition from Olympic gold medalist Michael Johnson's new Grand Slam Track series, but issued a warning over looming 2025 calendar clashes that ...