Testimony of Dimitry Bigun, father and coach of two of my youngest students who are 10 years old:... - Valverde System - Tennis Mental Toughness Program - Dr. Jorge Valverde | Facebook
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Andy Murray of Britain (R) trains with his coach Ivan Lendl before his men's final tennis match on Sunday against Roger Federer of Switzerland, at the Wimbledon tennis championships in London July
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