BJ Penn says he tried to WALK AWAY from the man he fought outside of a bar in Hawaii last month -- but claims the other guy snapped and attacked, leaving BJ to defend himself.
The UFC Hall of Famer is finally speaking out about that crazy incident outside of the Lava Shack on the Big Island where footage published by TMZ Sports showed Penn in a fist fight with another man. Penn was knocked down in the fight but eventually got up and smothered the man.

"I’m at a concert going to meet a friend that I’ve known since we were really young kids and I’m over there and an acquaintance of mine, he gets mad about something, you know something was said or it was an old past thing and then he wants to fight about it," Penn says.