Peyton Manning to retire a champion - CBS News
Archie Manning on Peyton's post-retirement options: He's not 'saying absolutely no to anything' - Los Angeles Times
For pro athletes, knowing when it's time to call it quits
Peyton Manning to retire after 18 NFL seasons – Orange County Register
Peyton Manning falls victim to Father Time as Denver Broncos lose to Indianapolis Colts - Sports Illustrated
Peyton Manning, Denver Broncos head into bye unbeaten but flawed - Sports Illustrated
Manning discusses Giants' career with jersey retirement set - The San Diego Union-Tribune
Peyton Manning to retire after 18 NFL seasons
QB Peyton Manning to announce retirement Monday – Orange County Register