The Hesitancy in Teaching Jujitsu?

Rio Ferdinand has been working on his back for a year. He says he's still hesitant to roll with anyone, but is getting better at teaching students how to do things like squatting and standing above two people. The wrestler also talks about finding the point of competing when you're not in competition. Rio: "I think the gold that we should always, always, always have, as to gitto people"