Gable Steveson demolishes Billy Swanson in 15 seconds at Dirty Boxing 4, calls out UFC matchmaker

Olympic champ Steveson showed he's more than just a wrestler with a brutal 15-second knockout Thursday in his Dirty Boxing 4 ...
Sherdog

Dirty Boxing 4 Highlight Video: Gable Steveson Runs Through Billy Swanson

Watch Gable Steveson annihilate Billy Swanson in 15 seconds courtesy of an uppercut atop Dirty Boxing 4 on Thursday night.