Peyton Manning, Aaron Rodgers headline where meeting of 6-0 teams

At some point in every great athlete’s career, he or she must deal with the reality that the best days are in the past. Peyton Manning has reached that point. Aaron Rodgers isn’t there yet. While some view Sunday’s game as a rare chance to compare and contrast two great quarterbacks at different points on their career arcs, the quarterbacks themselves prefer to focus on the task at hand: Green Bay vs. Denver, each looking to improve to 7-0. Neither…