I don't know, he's usually the very first to chime in on these..... Maybe you scared him off with the " terror " of the question..
I have to go somewhere with my wife. Will be back in 2 to 3 hours. If no one has come up with the answer or even come close by then, I will give you a few more clues.
I will give you some clues: 1. He was a 20th century heavyweight 2. He was probably ducked by the champions of his era--at least they did not fight him when they were champions, possibly because he was sinister.