Full coverage from Wimbledon in the women's singles tennis 3rd round as the USA's Serena Williams takes on Russia's Vera Zvonareva at the London 2012 Olympic Games.
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Tennis has a long Olympic history but withdrew from the programme after 1924. It did not return as a medal sport until 1988. Professionals are now welcome to compete, and the Olympic competition includes men's and women's singles and men's and women's doubles.
Find more about Tennis at http://www.olympic.org/tennis