Athletics at the 1972 Summer Olympics – Men's 400 metres

On the victory podium, Vince Matthews and Wayne Collett talked to each other and failed to stand at attention during the medal ceremony.

Since the third American competitor, John Smith, had pulled a hamstring while leading 80 metres into the final and had been ruled unfit to run, the United States were left unable to field a 4 x 400 relay team, and were thus forced to scratch from the event.

Three finalists, but no medalists, from 1968 returned: fourth-place finisher Amadou Gakou of Senegal, sixth-place Tegegne Bezabeh of Ethiopia, and seventh-place Andrzej Badeński of Poland (who had won bronze in 1964).

Despite the complete turnover from their 1968 podium sweep, the United States team was again favored—this time led by John Smith, the 440-yard world record holder and AAU champion.

[2] Dahomey, Cambodia, the Republic of the Congo, Fiji, Kuwait, Lebanon, Madagascar, Malawi, Paraguay, Peru, Saudi Arabia, and Zambia appeared in this event for the first time.