With Peyton Manning's retirement announcement set for Monday, the question that comes up nearly every football season is sure to be asked again: Who was better, Johnny Unitas or Peyton Manning?
Nothing gets a former Baltimore Colts fan riled up like saying Manning was better than Unitas.
In 2007, The Baltimore Sun tried to answer the question. The great NFL writer, Ken Murray, took up the comparison before the 2007 Super Bowl. Here's a fascinating look at two of the best quarterbacks in NFL history. Very few writers could break down the NFL and its players like Murray.