Sean Strickland stuns Khamzat Chimaev, becomes new champ (2:21) Sean Strickland stuns Khamzat Chimaev, becomes new champ. (2:21) Brett Okamoto May 10, 2026, 01:11 AM ET Close Brett Okamoto has reported on mixed martial arts and boxing at ESPN since 2010. He has covered all of the biggest events in combat sports during that time, including in-depth interviews and features with names such as Dana White, Khabib Nurmagomedov, Conor McGregor, Nate Diaz, Floyd Mayweather, Manny Pacquiao and Georges St-Pierre. He was also a producer on the 30 for 30 film: "Chuck and Tito," which looked back at the careers and rivalry of Chuck Liddell and Tito Ortiz. He lives in Las Vegas, and is an avid, below-average golfer in his spare time. NEWARK, N.J. -- Less than three years after a shocking upset win for the UFC's middleweight championship, Sean Strickland did it again Saturday. Strickland (31-7) dethroned the previously unbeaten Khamzat Chimaev (17-1) in a razor-close split decision at UFC 238 at Prudential Center.…