Outside of George Forema's comeback (1987-1997) one of my favorite comebacking old-timer was "The Bionic Hand" Gerrie Coetzee. In the mid 1990's Coetzee, inspired by Foreman, decided to make a splash on the HW division. Unfortunately he was well over-weight and well...old. It also didn't help him any that he hadn't fought in almost a decade, and despite facing a not-so-in-his-prime Iran Barkley (who was now a HW) he lost.
But make no mistake, Coetzee put up a helluva fight for a few rounds and had a flash or two of his former glories, even hurting Barkley at times. It was a pretty fun fight to watch despite it being two has-beens.
Name one of your favorite old-timers who made a comeback and name which fight was our favorite 8)