London 2012 Olympic Games: Day 14

Carmelita Jeter reacts after completing the anchor leg as the U.S. won the 4x100 relay in world record time (40.82) on Friday. Jeter, Tianna Madison, 200-meter champion Allyson Felix and Bianca Knight cut more than a half-second off the old record of 41.37 run by East Germany in 1985.