From 2009-2010, Jorge Posada, of the Yankees, batted .273/.349/.485 vs. left-handed pitching. The switch hitting catcher-turned-DH hit 16 doubles and 13 home runs from the right side of the plate, with a .361 wOBA, compared to a .370 wOBA vs. righties over the same period. This season, he's hitting .088/.225/.088 vs. lefties in 40 plate appearances. And while his K-rate vs. lefties from 2009-2010 was a fairly high 27.4%, that number has climbed to 32.5% in 2011, tenth worst in all of baseball.
The Yankees were certainly hoping for a much better start to the season from their DH. One thing that might portend better things to come for Jorge is his current BABIP which sits at .262, 46 points below his 2009-10 average. In fact, his 2011 BABIP vs. LHP is .143 compared to .345 from 2009-10. Posada has already seen a bit of a correction over the last month with a BABIP of .396 in 72 plate appearances. While he probably won't be able to sustain such a high average for the rest of the season, expect to see him hit closer to his career BABIP of .317 as the rest of his numbers continue to climb.