In pictures: Traditional boxing in Nigeria

One of the few rules in Dembe is that if your fist wrapping comes off, you must stop and re-do it, but not all boxers are so disciplined.

All competitors belong to one of two clans that travel from competition to competition fighting each other over and over again.

“We are all friends,” says champion boxer Hussaini Maisauki Baki, “but in the ring, there are no friends”.