Roberta Vinci stuns Serena Williams, ends Grand Slam bid

NEW YORK — For Serena Williams’ first 26 matches at major tournaments in 2015, no deficit was too daunting, no opponent too troublesome, no victory too far from reach. She was unbeaten and, seemingly, unbeatable, nearing the first Grand Slam in more than a quarter-century. All Williams needed was two more wins to pull off […]