11:48 AM PT -- TMZ Sports has obtained new footage showing BJ Penn getting knocked out when the fight spilled into the street.
You can see Penn egging the other guy on -- the same guy from our first video -- and when BJ's opponent throws a left hook, it connects flush with Penn's chin, sending him crumpling to the ground, arms sprawled.
BJ's friends immediately help him back to his feet -- and a screaming match ensues between all of the bystanders.
UFC legend BJ Penn was involved in another bar fight in Hawaii -- this time, the 40-year-old was sprawled out on top of another man raining down punches, and TMZ Sports has the video.