(by Jeff Bergin) Yesterday, Jordan Zimmermann had Tommy John surgery, and according to players like Sean Burnett, JZ should come back stronger and ready to roll at about a year, barring any other setbacks. The reason that JZ's surgery and more importantly, his recovery is a big deal, is that with JZ coming back and Strasburg now officially within the Nationals control for 6 years, the Nationals could develop one of the best young rotations in baseball.