Bloodsport is a movie that I like to believe have a a lot influence on my kinks when I was kid I still remember wathcing in my grandparents house on sunday and couldn't take my eyes from the TV. Probably was the first time I saw strong guys on few clothers fighting, and gosh, it was hot.
But weridely enough, the training montage was the scene that stuck with me the most. Specially that totally over the top split scene. Nowadays I find it super ridiculous, but boy, I still getting horny everytime I watch it.
Here the training montage and the main part is at 3:33 : https://www.youtube.com/watch?v=VnYDrs2ykcI

Thanks for the pic!
Colors by me.