David Haye had a decorated boxing career but still regrets never having shared the ring with one man. Bermondsey-born Haye fought from 2002 to 2018 and took just five years after turning professional to become the unified cruiserweight champion when he defeated Jean-Marc Mormeck in 2007. Wins over Audley Harrison and John Ruiz followed, before he was soundly beaten over 12 rounds by the unified champion Wladimir Klitschko. Vitali was a two-time world champion who lost to Lennox Lewis in 2003 but ended his career in 2012 with a total of 15 world title fight victories. The Ukrainian then served as the mayor of Kyiv and head of the Kyiv City State Administration until 2022.