sentences:  In either case, an RTD still counts as a type of knockout, and is displayed as a stoppage result on a boxer's win/loss record.One of the most notable corner stoppages in boxing occurred during the Muhammad Ali vs. Sonny Liston fight on February 25, 1964, the first of their two fights.After six back-and-forth rounds, Sonny Liston, complaining of a shoulder injury, refused to get up from his stool for the seventh round.