Federer stunned in Wimbledon quarterfinals; Nadal, Djokovic, Isner win

London • Roger Federer was a point away from a rather tidy, straight-set victory in the Wimbledon quarterfinals. One lousy point.And then, slowly, over the next two-plus hours, all the way until the fifth set reached its 24th game, as the temperature dropped and the spectators’ cries of “Let’s go, Roger!” echoed through the shadows, everything came apart for the eight-time champion. Against an opponent who’d never beaten him nor made it this far at the All Engl