SOUTH BEND, Ind. – Cary-Grove graduate Trevor Ruhland expected to be Notre Dame’s starting center this season, right up until the medical staff told him in January his left knee is like that of an 80-year-old man and he probably shouldn’t play football anymore. Bear in mind that Ruhland had endured a broken ankle, a broken elbow, a broken nose, torn pectoral muscles on both sides of his chest and a torn labrum in his right shoulder during his first four years at Notre Dame.