Aroldis Chapman has a reputation as a power pitcher, built through 16 years of routinely popping 100 mph on the radar gun. As Boston Red Sox closer has gotten older, the 37-year-old added craftiness to the power, baffling hitters by locating sliders and splitters that leave them flailing. The combination led to a rare four-strikeout game against the Arizona Diamondbacks and one of the most dominating runs by a reliever in baseball history. Chapman joined elite company with his four strikeouts in the ninth inning against Arizona after Ildemaro Vargas reached on a wild pitch. The left-hander has not allowed a hit in 17 straight appearances over 14 2/3 innings, the third-longest run since 1901.