He once was the greatest heavyweight ever. Now he is shot. And yes, for sure he's on gear, most pros are. They don't test for that in boxing.
"The 35-year-old Tyson is 17 pounds heavier than in his last fight, a year ago against Andrew Golota"
35 year old putting on 17lbs of muscle in a year, I'd say he had help.
Genarr3