FIVB Beach Volley Olympic International

The Netherlands' Margo Wiltens jump for the ball against China's Xue Chen during FIVB Beach Volley International Olympic test event tournament at Horse Guards Parade in London, Tuesday, Aug. 9, 2011.  (AP/Sang Tan)

China's Zhang Xi signal to her partner Xue Chen serving to the Netherlands Margo Wiltens and Jolien Sinnema during FIVB Beach Volley International Olympic test event tournament at Horse Guards Parade in London, Tuesday, Aug. 9, 2011.  (AP/Sang Tan)

U.S.'s Heather Lowe jumps for the ball against Brazil's Taiana Lima during FIVB Beach Volley International Olympic test event tournament at Horse Guards Parade in London, Tuesday, Aug. 9, 2011.  (AP/Sang Tan)

U.S.'s Heather Lowe jumps for the ball against Brazil's Taiana Lima during FIVB Beach Volley International Olympic test event tournament at Horse Guards Parade in London, Tuesday, Aug. 9, 2011.  (AP/Sang Tan)

U.S.'s Heather Lowe jumps for the ball against Brazil's Taiana Lima during FIVB Beach Volley International Olympic test event tournament at Horse Guards Parade in London, Tuesday, Aug. 9, 2011.  (AP/Sang Tan)

U.S.'s Heather Lowe jumps for the ball against Brazil's Taiana Lima during FIVB Beach Volley International Olympic test event tournament at Horse Guards Parade in London. (AP/Sang Tan)

Canada's Jamie Lynn Broder, rear, smashes against Britain's Denise Johns during the FIVB Beach Volley International Olympic test event tournament at Horse Guards Parade in London, Tuesday, Aug. 9, 2011. (AP/Sang Tan)

Spain's Andrea Garcia Gonzalo returns the ball during a practice session ahead of the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London. (Reuters/Luke MacGregor)

Britain's beach volleyball team member, Denise Johns dives for the ball as teammate Lucy Boulton, left, and opposition Shauna Mullin look on, during a photocall at Horse Guards Parade in London, Monday Aug. 8, 2011, on the eve of FIVB Beach Volley International Olympic test event tournament.  (AP/Sang Tan)

Britain's beach volleyball team member, Denise Johns dives for the ball as teammate Lucy Boulton, left, and opposition Shauna Mullin look on, during a photocall at Horse Guards Parade in London, Monday Aug. 8, 2011, on the eve of FIVB Beach Volley International Olympic test event tournament. (AP/Sang Tan)

Great Britain's beach volleyball team members Denise Johns, Lucy Bolton, Shauna Mullin and Zara Dampney (L-R) pose the day before the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London. (Reuters/Luke MacGregor)

Great Britain's beach volleyball team members Denise Johns, Lucy Bolton, Shauna Mullin and Zara Dampney (L-R) pose the day before the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London. (Reuters/Luke MacGregor)

Great Britain's beach volleyball team members Denise Johns, Lucy Bolton, Shauna Mullin and Zara Dampney (L-R) pose the day before the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London August 8, 2011.  (Reuters/Luke MacGregor)

Denise Johns (L) of Britain's beach volleyball team dives for the ball during a media event with team mate Lucy Bolton the day before the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London August 8, 2011.  (Reuters/Luke MacGregor)

Denise Johns (L) of Britain's beach volleyball team dives for the ball during a media event with team mate Lucy Bolton the day before the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London August 8, 2011. (Reuters/Luke MacGregor)

Denise Johns (L) of Britain's beach volleyball team dives for the ball during a media event with team mate Lucy Bolton the day before the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London. (Reuters/Luke MacGregor)

Denise Johns (L) of Britain's beach volleyball team dives for the ball during a media event with team mate Lucy Bolton the day before the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London. (Reuters/Luke MacGregor)

Lucy Bolton, Shauna Mullin and Zara Dampney of Britain's beach volleyball team practice during a media event the day before the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London. (Reuters/Luke MacGregor)

Teams from Spain and the Netherlands take part in a practice session ahead of the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London. (Reuters/Luke MacGregor)

Margo Wilterns of the Netherlands and Spain's Alejandra Simon (R) compete for the ball during a practice session ahead of the FIVB Beach Volleyball test event for the London 2012 Olympic Games at Horse Guards Parade in London. (Reuters)