Las Vegas Sun

May 3, 2024

Chael Sonnen hits the back of Nate Marquardt's head during their middleweight bout at UFC 109 Saturday, Feb. 6, 2010, at the Mandalay Bay Events Center. Sonnen won by decision.

Sam Morris / Las Vegas Sun

Chael Sonnen hits the back of Nate Marquardt's head during their middleweight bout at UFC 109 Saturday, Feb. 6, 2010, at the Mandalay Bay Events Center. Sonnen won by decision.