Wladimir Klitschko

Wladimir Klitschko is a Ukrainian heavyweight who unified multiple world titles and defended them a record 23 times across two championship reigns.

Wladimir Klitschko was born in Semipalatinsk, Kazakhstan in 1976, the son of a Soviet military officer, and became the most dominant heavyweight champion of the 2000s and 2010s — holding the IBF, WBA, WBO and IBO heavyweight titles simultaneously for over nine years, the longest reign as world heavyweight champion since the era of Joe Louis. He defended his unified titles 18 times. His jab-and-grab style — maintaining opponents at range with a precise jab, clinching to neutralise his counter-punching — was derided by critics as negative but proved almost impossible to solve. He won Olympic gold at the Atlanta Games in 1996. He lost to Corrie Sanders in 2003 and Lamon Brewster in 2004 — two unexpected defeats that prompted him to hire Emanuel Steward as trainer, a partnership that transformed him from a powerful but sometimes vulnerable champion into an almost impregnable one. He made 23 successful title defences after the Steward appointment. He lost a challenge for Anthony Joshua's titles in 2017 in a bout that generated over one million pay-per-view purchases — the largest boxing audience in British history. He retired following that defeat. He earned a PhD in sports science and has been an active Ukrainian politician, serving as Mayor of Kyiv since 2014.

Technical boxer with powerful jab and clinical finishing

One of longest-reigning heavyweight champions in boxing history

• 1996 Olympic gold medal