George Kambosos Jr. on the rise, the grind, and risking it all Kambosos breaks down the three fighters under Ferocious Promotions and what it really takes to reach the top. Coming through Neutral Corner Promotions, he knows the journey firsthand — and he’s not sold on fighters protecting their undefeated records. Sometimes losing your “zero” early builds you into a better, tougher, more complete fighter.