Mets third baseman David Wright has a stress fracture in his lower back, GM Sandy Alderson said, according to an ESPN.com report. Wright had an MRI on his ailing back Monday at the Hospital for Special Surgery. "I was shocked by it," manager Terry Collins said about the diagnosis. "... He is without a question the face of this team. His presence in this lineup is something we need. We're going to ask other guys to pick it up as of today. But I was shocked and unhappy."