Peyton Manning pens thoughtful tribute to David Letterman

It was clear that David Letterman was abundantly pleased that Peyton Manningplayed a role in the final taping of the “Late Show” on Wednesday, taking part in a celebrity-studded “Top 10 List.” After all, Letterman, a lifelong Indianapolis Colts fan, has long been an admirer of Manning, even after he joined the Denver Broncos.

The feeling is clearly mutual, as Manning penned a heartfelt tribute to the retiring late night icon, in which he makes it quite clear that he is and will forever be a “Letterman guy.”

Manning writes that he will never forget taking part in the taping, and notes that Letterman’s program is the only late night talk show on which he has appeared — four times before his…