Manning, who set NFL records in passing yards (5,477) and touchdown passes (55) this season and who led the Broncos to the No. 1 seed in the AFC playoffs. He was selected as the 2013 NFL Most Valuable Player and the Offensive Player of the Year, chosen in voting conducted by the Professional Football Writers of America (PFWA).
Manning's prolific season could be extended into Super Bowl XLVIII, with the Broncos taking on the New England Patriots and Tom Brady in Sunday's AFC Championship game.
St. Louis defensive end Robert Quinn, who led the NFC with 19 sacks and led the NFL in sack yards (145), was selected as the 2013 Defensive Player of the Year.
Quinn, in his third season, recorded sacks in 11 of 16 games, including five multi-sack games. He posted a season-high three sacks three times in 2013, and he broke the Rams' single-season record for sacks, held by Kevin Carter, who had 17 in 1999. He led the NFC in forced fumbles with seven, and two of them resulted in St. Louis touchdowns, including his own 31-yard return vs. Chicago in Week 12.
--As the Cleveland Browns' search for a new coach drags on, owner Jimmy Haslam wrote a letter to season ticket-holders asking them to be patient while the team pursues the right candidate for the job.
The Browns, who finished 4-12 in 2013, fired coach Rob Chudzinski after one season.
During the search, several candidates who interviewed for the job withdrew from consideration, including New England Patriots offensive coordinator Josh McDaniel and Arizona Cardinals defensive coordinator Todd Bowles.
--Oakland Raiders quarterback Terrelle Pryor is parting ways with his agent after Jerome Stanley accused the team before the season finale of trying to ruin his client's career.
Stanley alleged that the Raiders made Pryor the starting quarterback for their final game of the 2013 season to make him look bad in a meaningless game.
Pryor was forced to meet with coach Dennis Allen about Stanley's comments to smooth over the situation.
Matt McGloin, a rookie, had replaced Pryor as the starting quarterback earlier in the season.
--Terry McAulay has been named the referee for Super Bowl XLVIII on Feb. 2, the third Super Bowl assignment for the 16-year NFL game official.
McAulay, who entered the league as a side judge in 1998 and was promoted to referee in 2011, also worked Super Bowls XXXIX and XLIII. He has officiated 12 previous playoff games in all, including six conference championships.
McAulay's crew has 110 seasons of NFL officiating experience and will consist of umpire Carl Paganelli, head linesman Jim Mello, line judge Tom Symonette, field judge Scott Steenson, side judge Dave Wyant and back judge Steve Freeman. Each of the officials has at least 10 years of NFL experience, with Steenson and Wyant leading the way with 23 season each.