A FAN was knocked out cold as a mass brawl erupted at UFC Fight Night in Mexico City.
Supporters arrived at the Arena CDMX to watch the action taking place in the octagon.
But in shocking scenes, the mood for fighting spilled into the stands a mass punch-up began.
Several spectators swung fists at each other in the huge brawl and one fan was sparked out.
A man was caught by stiff left hand and fell to the floor.
THIS IS A DEVELOPING STORY..
The Sun is your go to destination for the best football, boxing and MMA news, real-life stories, jaw-dropping pictures and must-see video.Like us on Facebook at https://www.facebook.com/TheSunFootball and follow us from our main Twitter account at @TheSunFootball.