By Matt Hladik With UNC putting the finishing touches on Saint Peter’s moments ago, it became official. Duke and North Carolina will meet in the Final Four. For as many classic matchups as these two rivals have had over the years, they have never met in the NCAA Tournament. That will change Saturday night in New Orleans. Besides the rivalry aspect of the game, you have the added story line of Duke head coach Mike Krzyzewski’s pending retirement. The Heels already beat Coach K in his last game at Cameron Indoor Stadium–ending his career for good would be an even greater feat. The hype for this …