Why was Ali bout in doubt?

Today’s question: Muhammad Ali won the heavyweight title for the first time by defeating Sonny Liston, but why was the fight in doubt immediately beforehand?

Yesterday’s question and answer: The 1984 NBA draft is one of the most famous in history. Everyone knows that the Blazers passed on Michael Jordan to take Sam Bowie with the second pick, but do you know who the fourth overall pick was? The answer was Sam Perkins of the University of North Carolina. Perkins went on to have a solid 17-year NBA career.