The St. Louis Cardinals 2007 season was the team's 126th season in St. Louis, Missouri and the 116th season in the National League. The season started with the team trying to defend their 2006 World Series championship. During the offseason, the Cardinals were faced with the challenge of handling their starting rotation. Four of their five starters were free agents, including Jeff Suppan (the 2006 NLCS MVP), Jeff Weaver (the winning pitcher in the World Series Game 5 clincher), Mark Mulder, and Jason Marquis. In the end, Suppan, Weaver, and Marquis all signed with other teams. The Cardinals signed Mulder, who ended the 2006 season on the disabled list, to a new two-year contract, but Mulder remained on the disabled list after undergoing shoulder surgery.