A former professional MMA fighter from Chicago came to the rescue when an unruly passenger tried to open a Frontier Airlines door mid-flight on Sunday while the plane was headed to O'Hare International Airport.

A Frontier Airlines flight from Puerto Rico to Chicago was diverted to Miami after a passenger attempted to open an emergency exit door.

Josh Longood, a black belt in Brazilian jiu-jitsu, says he was on a Frontier flight to Chicago when he sprung into action as a man allegedly tried to open an exit door mid-flight