Russian MMA fighter Idris Abdurashidov is facing a potential lifetime ban after knocking out an opponent with an illegal head kick during his professional boxing debut.

Idris Abdurashitov - who has an undefeated record in MMA - made his debut in the squared-circle, but his illegal act in the ring has since gone viral on social media

ONE Championship fighter Idris Abdurashitov knocked out opponent Bagher Faraji with a ferocious head kick in their featherweight match on Sunday. The problem is, Abdurashitov and Faraji were participating in a boxing match — not an MMA bout.