The first perfect game in American League history was thrown by a pitcher who ended it with a taunt, defending his teammates against an insult, screaming at the final batter, "How do you like that, you hayseed?" The year was 1904, and the pitcher was Cy Young. On Wednesday night at Dodger Stadium, imitating that long-ago barb with an inside fastball, a battling Clayton Kershaw proved worthy of winning the award that carries Cy Young’s name. Although Kershaw will never admit it, his pitch that plunked the Arizona Diamondbacks’ Gerardo Parra in the elbow in the sixth inning of the...