LONDON, ENGLAND - JUNE 27:  Billie Jean King, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge  and  Chairman of the All England Lawn Tennis Club Philip Brook participate in the wave during the fourth round match between Rafael Nadal of Spain and Juan Martin Del Potro of Argentina on Day Seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 27, 2011 in London, England.  (Photo by Clive Brunskill/Getty Images) Photo: Clive Brunskill, Getty Images / 2011 Getty Images
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