Nick Bollettieri gives us his predictions for the marquee matchups between Roger Federer (SUI) vs. Tomas Berdych (CZE) and Jo-Wilfried Tsonga (FRA) vs. Andy Murray (GBR) of the 2010 Wimbledon Men's Quarterfinals.

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Nick Bollettieri gives us his predictions of the Vera Zvonareva (RUS) vs. Kim Clijsters (BEL) and Serena Williams (USA) vs. Na Li (CHN) matchups for the 2010 Women's Quarterfinals.