Three men were stabbed in the parking lot at Sports Authority Field. One is in critical condition.
Police say a fourth person might have been stabbed but left the scene. Authorities say three people are in custody, and at this point there are no other suspects on the loose.
The stabbing is just one of several incidents involving football fans.
Earlier this month in Kansas City, a man died after an altercation in the Arrowhead Stadium parking lot during Kansas City’s game against Denver.
In September in San Francisco, a teenage fan suffered a concussion and a broken arm and nose after he was attacked during the 49ers game against Indianapolis.