Born in modern-day Kazakhstan in 1976, Wladimir Klitschko gained fame representing Ukraine in the 1996 Olympic Games as an amateur boxer and winning the gold medal in the super-heavyweight division. Over the years, he has also racked up championships in the International Boxing Federation, the International Boxing Organization, the World Boxing Organization and the World Boxing Association. After becoming the second-longest reigning heavyweight world champion in boxing history, Klitschko announced his retirement in 2017.
Klitschko started dating Nashville actress Hayden Panettiere in 2009. The couple got engaged in 2011 and welcomed daughter Kaya in 2014. Their split made headlines in 2018.