Klitschko: I'll knock out Haye in 12th

Wladimir Klitschko doesn’t know whether he’ll be healthy enough to fight David Haye this. If he is, though, he says he’ll knock out the brash Briton.

"I will definitely enjoy the fight for 12 rounds,” he told BBC Radio 5 live. “Eventually, in the 12th round, I will knock him out. … David, just get in the ring. Don't find an excuse, just get in the ring."

Klitschko has had a lingering problem with a stomach muscle and isn’t certain he’ll be ready for the fight, which is scheduled for June 25 or July 2. If he can’t fight, older brother Vitali will take his place.

Vitali Klitschko defeated Odlanier Solis when the Cuban injured his knee in the first round last Saturday.

"David Haye thinks that Vitali is the toughest one," Wladimir Klitschko said. "That's why he's taking on the younger brother … because he's not that tough. That's why he chose me.

"You know what? I'm so scared of David Haye. He says he's going to take out my jab. So I will really feed him with the jab -- jab jab, grab, jab, jab, grab, grab -- and eventually the right missile is going to land on his chin or his temple or whatever it is.

"So I'm sorry guys, but David Haye will get knocked out."

Klitschko must decide by May whether he can fight. No site has been determined.