Many Cubs fans had a sleepless night last night as they await the results of today's MRI on Ace Carlos Zambrano's sore shoulder. He left last night's game in the 7th inning and ultimately took the loss. He has been 2-2 in his last five starts after starting the season 6-1. It was about a month ago he complained of a sore neck that radiated into his shoulder but felt it wasn't serious. The Cubs are in good shape at the moment, leading their division by 3 1/2 games over the Cards but they can't afford to lose Zambrano. If the news is bad, look for Hendry to get on the horn in a hurry. More on those possibilities later.