By Rick Reeno

StubHub Center, Carson, California - Robert “The Ghost” Guerrero (32-2-1, 18 KOs) has a high level of respect for Yoshihiro Kamegai (24-2-1, 21 KOs), of Sapporo, Japan. On Saturday night, Guerrero went to war with Kamegai for twelve rounds to win a unanimous decision.

Guerrero's left eye was practically swollen shut and he was cut above the swelling on his eyelid. He says Kamegai was one of the toughest fighters that he ever faced, and considers him to be a much tougher foe than former champion Andre Berto. Guerrero won a twelve round war with Berto in 2012.

"I hurt him a couple of times in the fight, but I noticed real quick that he could take a shot and he just continued to come. So I stayed composed and didn't get too crazy because he was trying to lay me out with the right hand," Guerrero told BoxingScene.com.

"I'll tell you one thing, this guy was a lot tougher than Berto. He hit hard, had a weird awkward style. He moved weird. He threw weird right hands, he's strong and he hit pretty hard."