You Nutter! A futsal referee in Serbia headbutts a goalie, gets arrested for his assault

Mad footage has emerged from a futsal match in Serbia as a referee unbelievably headbutted a goalie.

Referee Sasa Stefanovic was arbitrating the match between Ekonomac and Marbo, when a stoppage in the play ended up with the official bashing heads with Ekonomac goalie Miodrag Aksentijević.

After the collision, keeper Aksentijević instantly (and somewhat dramatically) fell on the floor, and security officials piled onto the pitch to separate the official from the angry Ekonomac players.

Local reports later confirmed that Aksentijević went to hospital for treatment after the attack, while ref Stefanovic was arrested by police.

Footage of incident can be seen below.