St. Louis Cardinals fans know the story by now: First baseman Luke Voit was traded to the New York Yankees for reliever Chasen Shreve and a little-known relief pitcher named Giovanny Gallegos. Voit has done quite well for the Yankees, and Shreve flopped with the Cardinals, but Gallegos shattered even the loftiest expectations any fan likely had for him.
Unfortunately for the Cardinals, Gallegos has hit his first real rough patch of the season. Until Aug. 27, Gallegos had an ERA of 1.95 and an opponent batting average of .155 on the season. But he has been shaky since then.