Justin Wilson always understood the danger that lurked behind the wheel for an ındyCar driver. "When it goes wrong," Wilson said following his 2012 return from race injuries, "it can get messy." It went terribly wrong for Wilson on Sunday. The British driver was in a coma in critical condition after sustaining a head injury when he was hit by a large piece of debris that broke off another car in the crash-filled race at Pocono Raceway.IndyCar released the information on Wilson's condition Sunday night and said he was undergoing evaluation at Lehigh Valley Health Network Cedar Crest Hospital in Allentown. The debris shot off Sage Karam's car when Karam spun into the wall late in the race. Wilson's car veered left and directly into an interior wall. He was quickly swarmed by the safety crew and taken away by helicopter.