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Ksenia Efremova: 12-year-old Russian tennis prodigy has 'incredible potential,' says Patrick Mouratoglou | CNN
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Volga Region State Academy of Physical Culture, Sport and Tourism -- Davis Cup will take place at the Kazan Tennis Academy
Vilas Tennis Academy - Intensive training and amazing weather this week for players coming from China, Russia, Romania, India, Switzerland, Germany, U.K. and Spain! | Facebook
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