Working out with Kai Greene is no easy feat. His workouts average 150 minutes. For two and one half hours, the Predator meticulously takes his body through a workout that tasks his body to respond by working hard, resting, then growing.

And when the Predator speaks during the workout, which is very rare, it's incumbent to listen to the sage advice from the number two bodybuilder of the world.

Part One

Part Two