Teen Wolf Too(1987)

Although awkward college student Todd Howard is particularly adept at science, he's paying for school with an athletic scholarship that he will lose should he not fare well in an upcoming boxing tournament. Luckily for Todd, he has inherited the same family curse that once turned his cousin into a werewolf. As he transforms into the hairy, fanged, howling monster, he finds both his physical agility and his popularity skyrocketing -- but at what cost?