Peyton Manning, the two-time Super Bowl-winning quarterback, is expected to announce his retirement on Monday in Denver. Manning played 17 seasons in the NFL, the first 13 with the Indianapolis Colts, and will go down as one of the all-time greats. In his final game, he won Super Bowl 50 as a member of the Denver Broncos.

Recently, though, his normally pristine image has been tarnished, with accusations of performance-enhancing drug usage and an alleged cover-up of a sexual-harassment incident while he was in college at the University of Tennessee.

Manning remains a vastly popular player, with a stunning list of accomplishments including five Most Valuable Player awards, the 2006 Super Bowl MVP and 14 Pro Bowl appearances.