Yeah, KSI never stood a chance. The popular streamer hit the mat with former UFC flyweight champion Demetrius Johnson, ...

Demetrious Johnson has long retired from mixed martial arts, but he'll never turn down the opportunity to show the ropes to anyone brave enough to get hurt.

YouTuber Olajide Olayinka Williams Olatunji, aka KSI, was brave enough to take on a grappling challenge against Demetrious ...

Demetrious Johnson's call for Kayla Harrison to retire instead of fight Amanda Nunes left the UFC women's bantamweight ...

Demetrious Johnson is undoubtedly one of the greatest MMA fighters of all time, and one clip, among his dozens of insane ...

KSI and Dillon Danis were supposed to square off in a boxing match earlier this year, before KSI withdrew due to an illness. Danis accused KSI of lying about the withdrawal as his rival teased ...

Dana White was left furious after Rory MacDonald’s fight against Jake Ellenberger in 2013 which led to him launching a ...

Harrison (19-1 MMA, 3-0 UFC) claimed the bantamweight title by submitting Julianna Peña (12-6 MMA, 8-4 UFC) in Saturday's ...

SEE MORE Bellevue, Wash.-based Zeacon has its name on warm-up gear worn by mixed martial arts fighter Demetrious Johnson. (Photo courtesy of Demetrius Johnson) Demetrious Johnson has been called ...

Ilia Topuria has proven to be unbeatable so far, but Demetrious Johnson suggests one area where he could be exploited.