One man involved reportedly laid unconscious in the pool of his own blood for about 15 minutes. He was taken to hospital for treatment and was released, police said.
Police said they did interview another man involved in the fight.
“It’s just one of those things — it just sounds like two guys fighting at UFC,” said Winnipeg police spokesman Const. Eric Hofley.
There were no other incidents related to the UFC event that night, Hofley said.