Is Curtis Granderson’s power sustainable?

If you go to the ESPN.com statistics page, you’ll see a smiling picture of Mark Teixeira next to AL home run leaders. But it could just as easily be Curtis Granderson. The two teammates, along with Howie Kendrick, are tied atop the AL leader board with six home runs. We know Granderson has power, but league-leading power? It just doesn’t seem likely. Still, as Dan Barbarisi of The Wall Street Journal notes, there is an additional factor to consider in Granderson’s case. Not only did he realize a late-season power surge in 2010 — similar to the one Jose Bautista experienced in 2009 — but he has also hit half of his homers this year against lefties. This has been a major weakness for him in the past, so if he can continue handling lefties well this year, he could definitely see an uptick in homers, even as his current pace slows a bit.