Is Zambrano DL Bound?

Cubs ace Carlos Zambrano is off to a great start this season, but has complained of shoulder/neck stiffness since his last start against the Pirates. Zambrano said he slept the wrong way and that is why he was sore on Saturday, but he doesn't need to make excuses for every bad start. Zambrano has thrown over two hundred innings over the past five seasons, and has thrown over one hundred pitches in seven of his last nine starts. Cubs trainers said the stiffness is minor, and that no one should worry, but Cubs officials should watch Zambrano's next start very closely to make sure he is okay, because he is really holding the rotation together right now.

So far this season, Zambrano is 6-1 with a 2.45 ERA and 46 K.