in a white corner stephen canta thanked nelson mandela by teaching a different kind of fight.e was a champ and teaches kids to box because nelson mandela had him. >> he instilled to me that i must do this job. >> nelson mandela urged stephen canta to help his community. stephen canta teaches kids to take anger out in the ring not the streets. >> we live in apartheid. i want to show other children how much they need in life. >> nelson mandela loved boxing and considered it an outlet for stress and anger. whilst running the first law firm he trained here. today it's the soweto ymca. >> i used to get in trouble, so i started boxing. >> what kind of trouble? >> you know. >> young men from soweto train in a modern space. when nelson mandela boxed the ring was made of concrete. [ inaudible ] >> thanks to nelson mandela. >> thanks to nelson mandela. >> thanks to nelson mandela's south africa's fight is kept inside. ring. >> it's changed, all the fighting. >> right here, the equipment that nelson mandela would have used. >> out back a security guard showed me equipment nelson mandela