#BJJ #JiuJitsu #Shorts Financial influencer Derek Moneyberg got a BJJ black belt in three and a half years with zero competition record. Now he's suing Sean Strickland for calling him a scam artist. Sources: - Derek Moneyberg addresses BJJ black belt controversy, says he's suing Sean Strickland - 3.5-Year BJJ Black Belt Derek Moneyberg Fires Back at Critics - Is Derek Moneyberg's BJJ Black Belt Legit? #Grappling #MartialArts