American Kickboxer 2 (1993)

When a eight-year old girl is kidnapped, her mother recruits her ex-husband, a tough-as-nails cop, and her former lover, a martial arts teacher. The two men hate each other because while the cop and the lady were married, she slept with the kickboxer. Now, the two men, despite their hatred for each other, must team up and rescue the girl before it's too late.