Michael Phelps (L) from the United States of America and his teammate celebrate during the swimming final of men's 4x100m freestyle relay at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 7, 2016. The United States won the gold medal with 3 minutes 9.92 seconds./ CHINA OUT
Nathan Adrian from the United States of America starts off during the swimming final of men's 4x100m freestyle relay at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 7, 2016. The United States won the gold medal with 3 minutes 9.92 seconds./ CHINA OUT
Swimmers from the United States of America attend the awarding ceremony of the swimming final of men's 4x100m freestyle relay at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 7, 2016. The United States won the gold medal with 3 minutes 9.92 seconds./ CHINA OUT
