The Champions (Chinese: 波牛) is a 1983 Hong Kong sports comedy film written and directed by Brandy Yuen, who also supporting role.
The film stars Yuen Biao, Cheung Kwok-keung, Dick Wei, Moon Lee, and Eddy Ko.
At first he is just a ball boy and a punch bag for the leading villain, King (Dick Wei).
But after too many beatings, Tung decides to play for another local team and to go against King in a one-off football match at the end.
[1] Variety applauded the film's "impeccably-choreographed action sequences" while also acknowledging that "the storyline (the underdogs make good) and acting are secondary", with only the final football match being criticized for taking place "in some obscure sand lot that truly weakens the impact.