UFC heavyweight Mike Russow may not look like a world-class fighter but he sure hits like one. The 15-1 Chicago cop has won his last eleven bouts including a pair of TKOs in his four Octagon appearances. However, this weekend he’ll face a challenge unlike any he’s stared down before inside the cage in the form of Fabricio Werdum.

Werdum is considered to be one of the top competitors in the division with past victories against the likes of Roy Nelson, Gabriel Gonzaga, Antonio Silva, Alistair Overeem, and Fedor Emelianenko. Of course, as impressive as Werdum’s resume may be, Russow is still supremely self-assured when it comes to his ability to take out the Brazilian in front of his countrymen at UFC 147.

“This is the biggest fight of my career. I’m gonna be the big underdog. I always am the underdog. Everyone always writes me off. ‘Here’s this guy, he looks overweight. He’s got a stomach.’ It’s fine with me. I’m confident in myself,” said Russow in an interview with the UFC. “I’m not fighting at the same level in jiu-jitsu as Fabricio but I don’t think I have to be. It’s a fight. I can punch when he’s going for submissions. I definitely believe I can be in the top echelon. I want to win. We’re gonna beat Fabricio in his hometown. I’m gonna take Fabricio out.”

TUF Brasil finals not withstanding, the rumble between Russow-Werdum is set to serve as a co-headliner on the card with a rematch between Rich Franklin and Wanderlei Silva slotted as the main event.

Check out the complete interview with Russow below: