Andrei Arlovski is a former UFC heavyweight champion, but he found himself on the edge of MMA extinction following four consecutive losses from 2009-2011.

Now, with a record of 4-0 in his last four fights, Arlovski will take on Anthony Johnson Saturday at World Series of Fighting 2.

“The Pit Bull” recently appeared on Radio to discuss his career, and he placed much of the blame for his struggles on his decision to work exclusively with boxing trainer Freddie Roach. Roach currently works with several fighters, including Georges St-Pierre, and has mentored many boxing world champions.

“I paid too much attention to boxing,” Arlovski said. “I wanted to try professional boxing. That’s why I didn’t focus on wrestling and jiu-jitsu, and it hurt me.”

Arlovski (19-9) lost to Fedor Emelinanenko, Brett Rogers, Antonio Silva and Sergei Kharitonov during his skid, but has rebounded to finish three of his four opponents. He did have a no-contest with Tim Sylvia in 2012 following an illegal strike that he threw.

Arlovski’s hands are his biggest weapon, as he remains the only fighter to knock Roy Nelson out. But, to say that is the sole reason he lost – a focus on boxing – is a bit of an overstatement.