Federer loses at U.S. Open
Roger Federer has been so dominant for so long that it's still a surprise when he looks like a mere mortal at a Grand Slam. It happened again at the US Open, where he made 43 unforced errors in a straight-sets loss to Tommy Robredo in the fourth round. Federer, who had reached the quarterfinals of 36 straight Grand Slams, has failed to do so in his past two. Will he win another title at tennis' four major tournaments?