Roberto Durán and Sugar Ray Leonard fought twice in a span of five months in 1980, resulting in two of the most memorable matches in boxing history. Durán, a Panamanian hero who, at 29-years-old, had fought mostly as a lightweight, came into their first welterweight bout a heavy underdog. He shocked the world when he dethroned the 24-year-old undefeated American boxing icon Leonard via unanimous decision. The second fight was memorable too—more infamous perhaps—for Leonard exacting the sweetest form of revenge on Durán by making him give up and utter the words “No más” (no more) in the eighth round. The phrase remains part of our vernacular today and a significant piece of both Durán’s legacy and boxing history.