Joe Calzaghe and or Mike tyson

[Andre]

Muhammad Ali's Workout Boxing Training Routine Greatest Heavyweight Fighter of All Time

[ST1]

At what point in his career was this his training program?

irrespective of when it was it would take a many months if not years to complete that amount of training on a single day (succesfully). Besides the huge work load on the physical body then strain on his immune system must of been huge.