
Vitali Klitschko (born 1971) of Ukraine was the WBC heavyweight champion twice and one of the most durable and technically sound heavyweights of the 2000s and 2010s alongside his brother Wladimir.
Vitali's jab and ring generalship made him nearly impossible to stop. He later became Mayor of Kyiv.
Reference:
TaskLoco™ — The Sticky Note GOAT