From 1960 to 1963, the young fighter amassed a record of 19–0, with 15 knockouts. He defeated boxers such as Tony Esperti, Jim Robinson, Donnie Fleeman, Alonzo Johnson, George Logan, Willi Besmanoff, Lamar Clark (who had won his previous 40 bouts by knockout), Doug Jones and Henry Cooper. Clay built a reputation by correctly predicting the round in which he would "finish" several opponents, and by boasting before his triumphs. Clay ...