What some of the most successful people in the world say about training in BJJ

What do some of the most successful people in the world say about training in BJJ? Brazilian Jiujitsu (BJJ) has a few surprising participants. Everywhere you go, at your office, the local coffee shop, even family Christmas lunch (yes – your ridiculously fit Aunty you only see once a year is probably hitting the mats once a day, which means …