Green Bay - Mike McCarthy, Aaron Rodgers and all of the Green Bay Packers' receivers are getting used to an offense without Greg Jennings. Dating to last December, injuries have hounded the team's top receiver. Last year, a knee injury derailed his season. This year, he can't shake a groin injury. After Jennings' groin injury flared up again in Sunday's 28-27 win over the New Orleans Saints, McCarthy said Monday that shutting the receiver down for a week is "definitely an option." "He could not open up all the way into a full stride," the Packers coach said. "So, I would think we are back where we were a couple weeks ago. We'll see how he is Wednesday. He'll go through the rehab process and then we'll learn more there.