ESPN: Slice beats Mercer in MMA ma

Ray Mercer tried his hand at mixed martial arts this weekend. The result? He's sticking with boxing.

The former WBO world heavyweight champion and Olympic gold medalist lost to noted street fighter Kimbo Slice in Atlantic City, N.J., this weekend in a fight that lasted just 1:12. Mercer submitted to Slice's guillotine choke hold.

"I walked right into his trap," Mercer said, according to the Philadelphia Daily News. "It was like I put my head in his armpit and said, 'Go ahead, choke me.' From now on, I'm sticking to boxing. I can't get choked out in boxing."

Mercer, 46, hasn't fought in the boxing ring since losing in seven rounds to Shannon Briggs in August 2005 in Hollywood, Fla.