WATKINS GLEN, NY (WTVB) - It appears that Tony Stewart's chances of making this year's Chase for the Sprint Cup are over. After suffering a broken right leg during a wreck at a sprint car race in Iowa on Monday night, the three-time Cup champion is bound to miss some time behind the wheel. ESPN cites a medical expert that says Stewart's broken tibia and fibula will require a second surgery in addition to the one he had following the crash. The injury typically requires a healing time of between four and eight weeks. NASCAR's regular season has just five races remaining and the 42-year-old Stewart currently sits in 11th place. Only the top-ten and two wild card drivers make the Chase. Stewart has been ruled out for this weekend’s race at Watkins Glen.