So fake.

If the whole club/bar saw this, we would have heard about it years ago.
Here are three true stories.
1. Steven Seagal almost got into it with Sylvester Stallone at a party. Witnesses said Stallone wanted to fight and Seagal chickened out.
2. Gene LeBell, the working actor, stuntman, and Judo legend kicked Seagal's ass on the set of his movie Out for Justice.
Supposedly, Seagal is a real dick to the extras and especially the stuntmen on his movie sets. LeBell called Seagal out. Some say it was due to Seagal bragging that no one had the ability to choke out a fighter of his caliber while others say LeBell had no use for Seagal's overinflated ego and overall a-hole behavior. At this time, Gene was already an old man, but he's an old man you don't want to fuck with. He put Seagal down with a move so brutal and quick that the people who saw it said Seagal shrieked like a woman, lost control of his bowels, and literally shit himself in front of those who witnessed it. The actor/comedian/UFC commentator Joe Rogan loves to tell this story.
3. Jean-Claude Van Damme got knocked semi-conscious by a left-right combination from part-time actor, stuntman, and former celebrity bodyguard Chuck Zito inside Scores strip club in New York.
They were once friends. Zito bodyguarded Van Damme and had a part in his film Hard Target. That night it appears that Van Damme had had a few, noticed Zito was also in the club, and started badmouthing him to those at his table. Van Damme's unflattering comments about his former friend got back to Zito's table. Before the night was over, Zito went over to Van Damme's table to inquire why he was talking shit. Van Damme got up... and went down as quick. Three second TKO in round one. Witnesses said that Van Damme was in and out of consciousness on the floor.
The End.