The St. Louis Cardinals starting pitcher Adam Wainwright will have Tommy John surgery on his right elbow and will miss the entire 2011 season. 

While this puts a major damper on the Cardinals playoff hopes, last year’s Major League Baseball playoff participants are faced with questions of their own.

Whether it’s the New York Yankees or the World Champion San Francisco Giants, each of these teams will have to address major concerns if they hope to play deep into October for consecutive seasons. 

Begin Slideshow