http://jeffcramer.blogspot.com/2011/09/very-candid-conversation-with-jack.html?m=1

This is a good read, the first half of it is all about his boxing career.

The man was a giant and beat Cleveland Williams, as well as Muhammad Ali's brother.

He claims he was robbed against Kenny Norton.

Foreman and Ron Lyle KO'd him.

He went on to star in many films including Superman 1 & 2 as the muscle of the Kryptonians.

Anyone remember this fella?