United States' women's relay team from left, Tianna Madison, Carmelita Jeter, Bianca Knight, and Allyson Felix pose for a photo by the clock showing their world record time, during the athletics in ... more 
United States' women's relay team from left, Tianna Madison, Carmelita Jeter, Bianca Knight, and Allyson Felix pose for a photo by the clock showing their world record time, during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Friday, Aug. 10, 2012. (AP Photo/Martin Meissner) less 
1 / 31
Associated Press | Photo By Martin Meissner
Fri, Aug 10, 2012 10:34 PM EDT