WBA champion David Haye promises a "brutal execution" of Wladimir Klitschko in their heavyweight fight Saturday. Calling the IBF and WBO champion a "robot" stuck in his "rigid ways," Haye said he was in the best shape of his life and vowed to send the younger Klitschko brother to hospital in their bout in Hamburg's soccer stadium. "You are going to see the most brutal execution of a boxer," Haye said Monday. "I will absolutely destroy him." Speaking at the same news conference, Klitschko said he respects Haye as a fighter but not as a person. "You have a certain attitude that is not so good for your life inside and outside the ring," the Ukrainian IBF and WBO champion said. Read more: http://sports.espn.go.com/sports/boxing/news/story?id=6708961