According to Jenna Laine of Yahoo! Sports, Minnesota Vikings running back Adrain Peterson underwent sports hernia surgery.
Vikings RB Adrian Peterson underwent a surgical procedure today to repair a sports hernia. Team says "no long-term concerns."
— JennaLaineBucs (@JennaLaineBucs) February 7, 2013
This is certainly a sign that rushing for over 2,000 yeard took a toll on Peterson’s body. It will be interesting to see how he bounces back next season.