Man does back flip and knocks himself out

This is the moment a man performed a back flip during a dance off - and knocked himself out.

Kevin Coyle, 35, was strutting his stuff in the pub when he attempted the somersault, without any encouragement.

But he kicked himself in the face half way round, and a video shows him collapse on the dance floor, while baffled drinkers look on.

His mates quickly put him in the recovery position, and he was checked over by paramedics.