Saw a movie on cable in the 90s about a high school student who was being bullied. Its similar to the new movie "Never Back Down" only this one has it where the school janitor saves the student from being jumped. He then trains the student how to fight. One scene I remember is when the janitor is throwing basketballs at the student to teach him about dodging. At the end, the student ends up fighting the big bully outside the school grounds. Shirts come off, and its on.