Lynch was reportedly leaving the bar with his group when a man, who may have been intoxicated, started to repeatedly call the football star a "Seattle sea chicken." That is when the fight started between the man and Lynch's friends, TMZ Sports said.
The video appears to show Lynch trying to pull people away from the fight. A witness told TMZ Sports Lynch threw punches before walking away.
San Francisco police said they responded to an incident at the bar, but nobody matching Lynch's name was arrested, cited, or named.