Mike Tyson and his tiny tshorts are back in the gym for another terrifying training video ... AND THIS ONE IS SCARY AS HELL!!
Once again, the 53-year-old -- who turns 54 next week -- is just going H.A.M. on his trainer, terrorizing the guy with some ultra-violent combos.
He's changing levels, he's striking with power ... it's more of the Mike Tyson you love.
Even Odell Beckham chimed in -- saying, "Mannnnnn hellllll na!!!! I don’t want no smokkkke y’all stop playin wit him."
UFC star Tyron Woodley added, "He baaaaaaaaack!