This former professional Boxer was considered the most dangerous man in this English prison.

For years as he enjoyed beating up fellow inmates and prison guards.

This time he barricaded himself in the room ready for a 1 on 8 fight with the guards.

1 Professional #Boxer fights 8 #PrisonGuards and It goes horrifically wrong#Knockout #mma #ko #ufc pic.twitter.com/HsOGuKqqk9

— Fight Haven (@FightHaven) September 16, 2021