A French rugby player has been filmed punching the referee in the face after being sent off.
The short bit of vision shows the player about to leave the ground, before turning around and electing to punch the referee.
The blow knocked the referee out cold and was so severe it landed him in hospital, according to a report in L'Independant.
The match, between youth sides Saint-Estève and Toulouse in the Coupe Luc Nitard, a youth tournament, was stopped after the blow.
Vision was shared on Twitter by former South African cricketer Allan Donald.
"The most disgraceful thing I have ever seen on a rugby field," he wrote.
The referee who was punched was Benjamin Casty, the older brother of former Roosters forward and French international Rémi.