The first Peyton Manning retirement report, from an unlikely source

As questions continue to swirl regarding the future of Colts quarterback Peyton Manning, word has emerged on Twitter that Manning will retire. Such word comes from Rob Lowe, the actor/Colts fan.  Lowe, who appeared last month on The Rich Eisen Podcast, tells his 230,000-plus followers that Lowe is hearing Manning will call it quits. Lowe…