Kostya Tszyu
Konstantin Borisovich "Kostya" Tszyu (/ˈkɒstə ˈzuː/; Russian: Константин (Костя) Борисович Цзю; born 19 September 1969) is a semi-retired Russian-Australian professional boxer of mixed Russian, Korean and Mongol descent. He holds both Russian and Australian citizenship and is a four-time world Light Welterweight Champion, including a period of time as the Undisputed Light Welterweight Champion.
Tszyu was the first champion to unify the light welterweight division in over 30 years. He is considered by many in Australia to be a national sports hero. On 7 December 2010, he was inducted into the prestigious International Boxing Hall of Fame for the Class of 2011.
Read more about Kostya Tszyu: Early Years, Professional Record, Records, Personal Life, Legal Disputes