The main talking point from the world of US sport revolves around the NFL preseason.
And whilst teams have been preparing for the 2014 season with a number of preseason games, two of the league's franchise's took the competition to the training facility.
We all know NFL players have to play at incredible intensity to reach their peak, but the Oakland Raiders and Dallas Cowboys took it a step too far yesterday during a joint practice session in California.
A brawl involving virtually every member of the on field squads was sparked after a Raiders player took an over zealous hit from Cowboys corner, Morris Claiborne.
Things then got worse when one spectator seemed to swing a helmet at Cowboys cornerback B.W. Webb during the melee. Video footage of the incident shows the 24-year-old retaliate with a swing of his own in the direction of the Raiders fan.
Police were brought in to enforce a barrier between the fans and practice field for the remainder of the session but the ruckus doesn’t seem to have bothered the owners of the two NFL teams.
Both Jerry Jones and Mark Davis joked about the intensity of the practice in the subsequent press conference.
The Dallas Cowboys continue their preseason program on Saturday when they take on the Baltimore Ravens.
The Oakland Raiders meanwhile face the Detroit Lions having suffered a 10-6 loss to the Minnesota Vikings in Game One of their preseason schedule.