The Cleveland Browns' field at FirstEnergy Stadium was vandalized early Tuesday morning by an unknown individual who drove circles around the turf.
Footage from News 5 Cleveland, which captured the damage from a helicopter, shows tire marks that appear to span almost half of the field.
A team spokesman said the Browns notified police about the incident. According to News 5 Cleveland, the Cleveland Police Department is investigating the incident as a possible break-in, noting that it appears the individual may have jumped a fence and driven around on a golf cart.
The Browns, who host the Tampa Bay Buccaneers this weekend, say they are confident the damage will be repaired in time for Sunday's game.