USA's Sanya Richards-Ross heads to the finish line to win the gold medal in the women's 4x400-meter during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Saturday, Aug. 11, 2012. (AP Photo/Matt Slocum)
Olympics: Day 15
•August 12, 2012
Highlights of the day's competition at the London 2012 Olympic Games.