Time Trax (1993)

S1E8 The Contender

A man suddenly appears before Lambert, asserting that he hails from the future as well. He reveals that he was employed by Sambhi and has traveled back in time to prevent his son, a renowned boxer, from committing murder in the ring. Despite the father's pleas, the son remains obstinate, leaving Lambert with no choice but to step into the ring and face off against him.