Nevalyashka (2007)

Tumbler is a young boxer competing in the light weight category. Although thinner than his rivals, he nevertheless easily puts them in the ring. Tired of "easy" victories, Tumbler wants to knock out the enemy more seriously. From the news, he learns about an American nicknamed "Saw" and his beautiful girlfriend Katherine. Having fallen in love with a girl, he decides to win her heart by beating the Saw. Preparing for a fight, he accidentally meets coach Semenych and a young ballerina, whom he immediately falls in love with. But by chance, a love letter written by him to Katherine goes across the ocean.