The last American male boxer exited the London Games to complete a humiliating first Olympics without a medal for the most decorated nation in the sport.
Welterweight Errol Spence lost 16-11 to Russian Andrey Zamkovoy in his quarter-final, failing to take advantage of the second chance given to him by organisers AIBA, who changed the result of the American's previous bout after a video review.
Reuters reports that Spence's loss followed that of his eight team mates, as the Americans outdid their woeful one bronze from the Beijing Games four years ago.
