Step 1 : Introduction to the question "Which boxer sold the rights to his grilling machine for $138 million?"
George Foreman is a two-time world heavyweight champion and an Olympic gold medalist. Outside of boxing, he is a successful entrepreneur and known for his promotion of the George Foreman Grill, which has sold over 100 million units worldwide. In 1999, he sold the naming rights to the grill for $138 million. In 2017 Foreman opened up about the origins of his multimillion-dollar grill idea, claiming that right after getting knocked out by Muhammad Ali, he had a hallucination that a talking piece of meat demanded to be grilled.