#BJJ #JiuJitsu #Shorts Joe Rogan ep 1598 has The Undertaker explaining his BJJ black belt prep in his own voice. Spoiler: it was a WWE referee. We argued for fifteen years. Sources: - #1598 - Mark 'The Undertaker' Calaway — The Joe Rogan Experience (Spotify) - The Undertaker's BJJ Journey — BJJ Fanatics - The Undertaker — Wikipedia - Rolles Gracie Jr. — Wikipedia #Grappling #MartialArts