Chalk time: Blue bloods Kansas, ’Nova, Duke interrupt upsets

We interrupt this March for underdogs with a reality check from some of college basketball’s blue bloods.Kansas, Villanova and Duke are still alive in the NCAA Tournament, ready to tilt the bracket back toward the favorites.Call Friday the exception to what has been an extraordinarily-maddening, upset-laden March. One that showcased three powerhouse teams, each good enough to be deemed the favorite if they reach the national title game.In the East, top-seeded Villanova held up to fifth-see