Claim: Wladimir Klitschko is an athlete.
Evidence: Wladimir Wladimirowitsch Klitschko -LRB- Володи́мир Володи́мирович Кличко́ , ; born 25 March 1976 -RRB- is a Ukrainian professional boxer.
Professional boxing , or prizefighting , emerged in the early twentieth century as boxing gradually attained legitimacy and became a regulated , sanctioned sport.