Wladimir Klitschko is a Ukrainian professional boxer. He was born in 25 March, 1976. He is a former world heavyweight champion of four sanctioning bodies, having held the titles of the WBA, IBF, WBO (twice), and IBO, in addition to holding the lineal championship.
He began boxing in the early 90’s and won the Junior European Championships in 1993.
From October 2013 he was engaged to Hayden Panettiere.