NASHVILLE, Tenn. (AP) _ Tennessee has no time to think about what could have or would have been if Peyton Manning had chosen to be a Titan in March 2012.

They're too busy preparing to defend him once again.

This week provides a painful reminder of what might have been if the Titans had been able to successfully sign Peyton the free agent. At their owner's bidding, they wooed the four-time NFL MVP hard with a Hall of Fame offensive lineman as head coach leading the way only to lose out to Denver and another Hall of Famer in John Elway.

Coach Mike Munchak says the Broncos being atop the AFC shows what a difference Manning can make to a team.

Meanwhile, the Titans (5-7) are struggling _ again _ to put together wins.