Blizhniy Boy: The Ultimate Fighter (2007)

Erik is a son of a rich businessmen who has ties with the Russian mob. The mob sets up his family and he is forced to flee to America as that is the only place that he is able to make money fighting in the underground. The old and rich Mikhail becomes his protector and manager, and the only way for the mob to get to Erik is to bet against him in the underground fights.