A big-money, multiyear contract will be signed by Carlos Zambrano in 2007, so the pitcher must decide whether it's worth the risk to return from his back injury and make a handful of starts the rest of the season. An MRI on Zambrano's back showed nothing more than irritation, but he will miss at least one start as he waits for the pain to decrease. "I want to pitch, but I can't take a risk on my career with this," Zambrano said. "When you have a back problem ? sometimes you can [compensate and] hurt your shoulder, and that can be the end of my career in one or two seasons. I don't want that to happen."