IBF and WBO heavyweight champion Wladimir Klitschko says he will knock out David Haye in the 12th round of their title fight this summer.
Ukraine fighter Klitschko, 34, takes on WBA champion Haye, 30, on either 25 June or 2 July in a unification bout.
He told BBC Radio 5 live: "I will definitely enjoy the fight for 12 rounds. 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, whose brother Vitali retained his WBC heavyweight title by knocking out Cuba's former Olympic champion Odlanier Solis at the weekend, was originally going to fight Haye in 2009.
But Haye, who plans to retire before his 31st birthday in October, had to pull out with a back injury.
Talks to rearrange the fight stalled last December with the two camps wrangling over the details of the contest.
Now that the fight has finally been agreed, Klitschko says he is looking forward to taking on the Brit.
"David Haye thinks that Vitali is the toughest one," he added. "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 had to pull out of a fight with British boxer Dereck Chisora earlier this month because of a stomach injury, and he will have to prove his fitness by the beginning of May for the fight with Haye to go ahead.
The two camps are still working on the details of the bout, with an announcement of the venue expected some time in April.
Stick to what you know Wlad, we wouldn't want any surprises.
Ukraine fighter Klitschko, 34, takes on WBA champion Haye, 30, on either 25 June or 2 July in a unification bout.
He told BBC Radio 5 live: "I will definitely enjoy the fight for 12 rounds. 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, whose brother Vitali retained his WBC heavyweight title by knocking out Cuba's former Olympic champion Odlanier Solis at the weekend, was originally going to fight Haye in 2009.
But Haye, who plans to retire before his 31st birthday in October, had to pull out with a back injury.
Talks to rearrange the fight stalled last December with the two camps wrangling over the details of the contest.
Now that the fight has finally been agreed, Klitschko says he is looking forward to taking on the Brit.
"David Haye thinks that Vitali is the toughest one," he added. "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 had to pull out of a fight with British boxer Dereck Chisora earlier this month because of a stomach injury, and he will have to prove his fitness by the beginning of May for the fight with Haye to go ahead.
The two camps are still working on the details of the bout, with an announcement of the venue expected some time in April.
Stick to what you know Wlad, we wouldn't want any surprises.
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