During his comeback, most were taking him lightly. He was having fun with it. Winning the title again at age 45; will probably never happen again. I remember him saying, "My power's made to order."
One of the 3 greats from the last great era of fighters and made an impact on the sport after a 10 year retirement - says all you need to know about his greatness and how far the sport fell.
If it weren't for a brief resurgence with Tyson, Holyfield and Lennox Lewis - boxing would have been dead long ago. Today no one cares and MMA has taken over.