A look at three of the NFL’s top quarterbacks, all going strong in their mid- to late-30s.

Drew Brees

New Orleans Saints

Age to start season: 35

2013 stats: 446 of 650, 5,162 yards, 39 touchdowns, 12 interceptions

Peyton Manning

Denver Broncos

Age: 38

2013 stats: 450 of 659, 5,477 yards, 55 touchdowns, 10 interceptions

Tom Brady

New England Patriots

Age: 36

2013 stats: 380 of 628, 4,343 yards, 25 touchdowns, 11 interceptions