Doglegs

Shintaro is a Tokyo janitor who moonlights as a pro wrestler in an underground league called Doglegs. He's had 20 glorious years in the ring but now he's getting old and wants to pursue his regular-Joe dream: success at work, and hopefully, settling down with his secret dream-girl, but Kitajima, the group's organizer, has other plans. Shintaro's oldest rival, 'Antithesis' Kitajima, is billed as "the man who has beaten up the disabled for twenty years". Shintaro challenges him for one last fight. (imdb)