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Jelena Jankovic of Serbia (R) shakes hands with Maria Joao Koehler of Portugal after winning their women's singles match at the Australian Open tennis tournament in Melbourne January 16, 2013. REUTERS/Navesh Chitrakar (
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Roberta Vinci of Italy returns a ball to Maria Joao Koehler of Portugal during the Estoril Tennis Open in Jamor May 2, 2012. REUTERS/Jose Manuel Ribeiro (PORTUGAL - Tags: SPORT TENNIS Stock
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File:2013 US Open (Tennis) - Qualifying Round - Maria Joao Koehler (9712743598).jpg - Wikimedia Commons
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Tennis: Brandell-Larsen and Koehler-Kraljic are doubles champs at Elk River Open | Sports | hometownsource.com
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File:2013 US Open (Tennis) - Qualifying Round - Maria Joao Koehler (9712736470).jpg - Wikimedia Commons
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