Peyton Manning flew to New York this spring to pay his respects to Derek Jeter and David Letterman, two much-admired superstars in the middle of their long goodbyes. ''I'm not far behind.'' Yet retirement really isn't on Manning's radar as he prepares for his 17th NFL season, his third in Denver. Coming off the best two-year stretch of his career, Manning is keeping tacklers, tedium and time itself at bay. At 38, Manning said he'll keep playing as long as he's still productive and loves the game. More...