2012 US Open: Day 10

Andy%20Roddick%20of%20the%20United%20States%20reacts%20against%20Juan%20Martin%20Del%20Potro%20of%20Argentina%20during%20their%20men%26%238217%3Bs%20singles%20fourth-round%20match%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Cameron%20Spencer%2FGetty%20Images%29%20

Andy%20Murray%20of%20Great%20Britain%20returns%20a%20shot%20to%20Marin%20Cilic%20of%20Croatia%20during%20their%20men%26%238217%3Bs%20singles%20quarterfinal%20match%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Matthew%20Stockman%2FGetty%20Images%29%20

Stanislas%20Wawrinka%20of%20Switzerland%20returns%20a%20shot%20during%20his%20men%26%238217%3Bs%20singles%20fourth-round%20match%20against%20Novak%20Djokovic%20of%20Serbia%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Clive%20Brunskill%2FGetty%20Images%29%20

NBA%20basketball%20player%20Tyson%20Chandler%20and%20his%20daughter%20Sacha-Marie%20attend%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Chris%20Trotman%2FGetty%20Images%20for%20USTA%29%20

Novak%20Djokovic%20of%20Serbia%20returns%20a%20shot%20during%20his%20men%26%238217%3Bs%20singles%20fourth-round%20match%20against%20Stanislas%20Wawrinka%20of%20Switzerland%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Clive%20Brunskill%2FGetty%20Images%29%20

Juan%20Martin%20Del%20Potro%20of%20Argentina%20celebrates%20a%20point%20against%20Andy%20Roddick%20of%20the%20United%20States%20during%20their%20men%26%238217%3Bs%20singles%20fourth-round%20match%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Cameron%20Spencer%2FGetty%20Images%29%20

Brooklyn%20Decker%2C%20wife%20of%20Andy%20Roddick%20of%20the%20US%2C%20watches%20his%20match%20against%20Juan%20Martin%20Del%20Potro.%20%28Photo%20credit%20should%20read%20TIMOTHY%20A.%20CLARY%2FAFP%2FGettyImages%29%20

Andy%20Roddick%20of%20the%20US%20%2820%29%20plays%20against%20Juan%20Martin%20Del%20Potro%20of%20Argentina%20%287%29%20during%20their%202012%20US%20Open%20men%26%238217%3Bs%20singles%20match.%20%28Photo%20credit%20should%20read%20TIMOTHY%20A.%20CLARY%2FAFP%2FGettyImages%29%20

Sara%20Errani%20of%20Italy%20returns%20a%20shot%20against%20Roberta%20Vinci%20of%20Italy%20during%20their%20women%26%238217%3Bs%20singles%20quarterfinal%20match%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Clive%20Brunskill%2FGetty%20Images%29%20

Janko%20Tipsarevic%20of%20Serbia%20hits%20a%20return%20to%20Philipp%20Kohlscheiber%20of%20Germany%20during%20their%20men%26%238217%3Bs%20singles%20match%20at%20the%202012%20US%20Open.%20%28Photo%20credit%20should%20read%20DON%20EMMERT%2FAFP%2FGettyImages%29%20

Marion%20Bartoli%20of%20France%20returns%20a%20shot%20against%20Maria%20Sharapova%20of%20Russia%20during%20their%20women%26%238217%3Bs%20singles%20quarterfinal%20match%20on%20Day%2010%20of%20the%202012%20U.S.%20Open.%20%28Photo%20by%20Mike%20Stobe%2FGetty%20Images%20for%20USTA%29%20

Maria%20Sharapova%20of%20Russia%20reacts%20after%20a%20shot%20against%20Marion%20Bartoli%20of%20France%20during%20their%20women%26%238217%3Bs%20singles%20quarterfinal%20match%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Cameron%20Spencer%2FGetty%20Images%29%20

Maria%20Sharapova%20of%20Russia%20reacts%20after%20defeating%20Marion%20Bartoli%20of%20France%20in%20their%20women%26%238217%3Bs%20singles%20quarterfinal%20match%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Elsa%2FGetty%20Images%29%20

Sara%20Errani%20of%20Italy%20hugs%20Roberta%20Vinci%20of%20Italy%20after%20their%20women%26%238217%3Bs%20singles%20quarterfinal%20match%20on%20Day%2010%20of%20the%202012%20US%20Open.%20%28Photo%20by%20Clive%20Brunskill%2FGetty%20Images%29%20

Marion%20Bartoli%20of%20France%20%2811%29%20reacts%20to%20a%20point%20against%20Maria%20Sharapova%20of%20Russia%20%283%29%20during%20their%202012%20US%20Open%20women%26%238217%3Bs%20singles%20match.%20%28Photo%20credit%20should%20read%20TIMOTHY%20A.%20CLARY%2FAFP%2FGettyImages%29%20