Concern for Papelbon?
Jonathan Papelbon is one of, if not the best closer in baseball. Of that there is no doubt. You don't have to look much farther than his 89% save rate (118 out of 133 since 2006), 1.84 career ERA, and 4.79 K/BB rate to make that assessment. Throw in the fact that he's not allowed a run in 25 career postseason innings over 16 appearances and his name stands alone with Mariano Rivera at the top of a long list of closers you would take with you to the end without reservation.At the surface, 2009 has been more of the same for Papelbon. He's closed the door in save situations five times in five opportunities while amassing a 1.94 ERA. But a deeper look should give you pause to think twice about thinking that 2009 Papelbon has been as effective as previous years' versions.