Kostya Tszyu, Russian-Australian boxer

Kostya Tszyu

Russian-Australian boxer (born 1969)

Konstantin Borisovich "Kostya" Tszyu is a Russian-Australian former professional boxer who competed from 1992 to 2005. He held multiple world championships in the light-welterweight division, including the undisputed and lineal championships between 2001 and 2005. Tszyu was an…