KEY POINTS:
World welterweight champion Demetrius Andrade sealed the US team's worst Olympic boxing performance when he lost 11-9 to South Korea's Kim Jungjoo in his quarter-final bout.
The defeat left the Americans with just one boxer, heavyweight Deontay Wilder, who struggled to beat Morocco's Mohammed Arjaoui on countback to reach the last four.
The situation is a major embarrassment for a country who have won a record 48 Olympic boxing golds and had never left a Games with fewer than two medals.
A distraught Andrade became the latest of many boxers to complain about the scoring. "I fought my heart out but sometimes life is unfair," he said. "I was landing a lot of punches but the judges were not giving them to me. It's tough for the kids back home who want to take up boxing because if they come to the Olympics to be treated like this, there's no point in coming at all," he added.
The US can get only one medal.
- AGENCIES