Question: Which American former professional boxer later stripped of the WBC title for facing Ali in an unapproved rematch did Randall Craig "Tex" Cobb take a win from?
Sentence (from "Leon Spinks"): In only his eighth professional fight, he won the undisputed heavyweight championship in 1978 after defeating Muhammad Ali via split decision, in what was considered one of the biggest upsets in boxing history.
Relevant evidence: No