Women's beach volleyball preliminary matches

Misty May-Treanor (L) and Kerri Walsh Jennings of the US celebrate their victory over Australia's Nat Cook (back) and Tamsin Hinchley (unseen) during the women's beach volleyball preliminary match at the Horse Guards Parade during the London 2012 Olympic Games July 28, 2012.[Photo/Agencies]

Australia's Tamsin Hinchley prepares to serve against the US during the women's beach volleyball preliminary match at the Horse Guards Parade during the London 2012 Olympic Games July 28, 2012.[Photo/Agencies]