Wladimir Klitschko has dominated the heavyweight scene in recent years but is set to face a stern test from Bryant Jennings.
Wladimir Klitschko has announced he is to put his world heavyweight titles on the line against unbeaten American Bryant Jennings in New York in April.
The Ukrainian holds the IBF, IBO and WBA and WBO crowns and has not lost a fight since a 2004 defeat to Lamon Brewster.
But in what will be his first bout on American soil for seven years, Klitschko expects is a difficult fight when he takes on Jennings at Madison Square Garden on April 25.
"I have a lot of respect for Bryant Jennings and his performances," Klitschko said in a statement.
"He moves very well and is very skilled. I know it will be a tough challenge but I am especially happy to be fighting in New York again."
Klitschko has lost only three of his 66 professional bouts and needed just five rounds to knockout Kubrat Pulev in his most recent contest in November last year.
Jennings, meanwhile, is undefeated in 19 fights, winning 10 of them by knockout.
And the Philadelphia-born fighter is confident he has what it takes to pull of shock victory.
"I am hungry for success and will bring the heavyweight title back to the United States," Jennings said.
"I know how to beat Klitschko and I will show it to the world in April."