NINE sixth-grade boys have been expelled from an American school after officials found out they were participating in an after-school “fight club” to see who was the toughest.

The school only found out after the local news station spoke to one of the boy’s relatives and aired a video of a fight that was taken with a mobile phone.

Will these kids (pictured) ever learn? The first rule of after-school fight club is not to tell mum about after-school fight club!

Don’t think that this was some bloody, violent sport though – there were rules such as no punches to the face. “Your Mother” jokes were also prohibited.

The school principal was ashamed that none of the parents alerted the school about the fights, and said that “the length of their expulsions will be decided on a case-by-case basis,” as he offered us DVD’s of each fight for $5 a pop.