NFL Single-Season Passing TD Leaders Author:SI StaffPublish date:Dec 23, 2013NFL Single-Season Passing TD Leaders Peyton Manning: 55 (2013)Scott Halleran/Getty Images Tom Brady: 50 (2007)David Bergman/SI Peyton Manning: 49 (2004)AP Dan Marino: 48 (1984)Ronald C. Modra/Sports Imagery/Getty Images Drew Brees: 46 (2011)John Fitzhugh/Biloxi Sun Herald/MCT via Getty Images Aaron Rodgers: 45 (2011)Jeffrey Phelps/AP Dan Marino: 44 (1986)John Iacono/SI Drew Brees: 43 (2012)Chris Graythen/Getty Images Kurt Warner: 41 (1999)Peter Read Miller/SI Matthew Stafford: 41 (2001)Greg Nelson/SILatest NFL NewsEx-Bills RB Nyheim Hines Finds New Home: DetailsChargers Lose Key Free Agent to NFC North SquadPatrick Queen Picks Steelers Over Panthers + OthersHow the 49ers Will Replace Arik ArmsteadRamon Foster On Steelers Signing Russell Wilson, "It Cuts the Legs Out From Under Kenny Pickett"