One on One (2002)

Macak (The Cat) is the best basketball player around the blocks of New Belgrade. Meanwhile, his friend is bullied by a local gangster Coma, whom he owns money. To pay off his debt, Macak will play 1 on 1 with the rival player, eventually winning it. However, Coma doesn't stand on his promise, so Macak decides to solve this problem the other way.