After Rafael Nadal waited out three rain delays totaling almost 2 ½ hours to win his first Wimbledon title two years ago in a match for the ages against Roger Federer, one stoppage of less than two hours Monday at the U.S. Open couldn’t dampen his pursuit of history. Neither rain, nor thunder and lightning, nor Novak Djokovic taking the first set against him all tournament kept the 24-year-old Spaniard from his appointed round with that history as he completed a career Grand Slam with a 6-4, 5-7, 6-4, 6-2 victory over the third-seeded Serb. He became only the seventh...