Philadelphia Eagles' LeSean McCoy, right, and Jason Avant celebrate after MCCoy's touchdown during the second half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Philadelphia Eagles' DeSean Jackson celebrates in the snow after a touchdown during the second half of an NFL football game against the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles' Riley Cooper, left, kicks up the snow as he pulls in a two-point conversion as Detroit Lions' Chris Houston defends during the second half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions' David Akers(2) has his point after attempt blocked during the second half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Philadelphia Eagles' DeSean Jackson (10) is tackled by Detroit Lions' Jeremy Ross (12) during the second half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Detroit Lions' Dorin Dickerson, left, cannot hang onto a pass as Philadelphia Eagles' Brandon Boykin defends during the first half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Philadelphia Eagles' Riley Cooper, left, cannot catch a pass in the end zone as Detroit Lions' Rashean Mathis defends during the first half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

A Philadelphia Eagles' cheerleaders perform during the first half of an NFL football game against the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Detroit Lions' Jeremy Ross, right, returns a punt for a touchdown as Philadelphia Eagles' Chris Polk gives chase during the second half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Detroit Lions' Jeremy Ross, left, celebrates with Don Carey after scoring a touchdown during the second half of an NFL football game against the Philadelphia Eagles, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Detroit Lions' Calvin Johnson (81) catches a pass as Philadelphia Eagles' Cary Williams (26) defends during the first half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions head coach Jim Schwartz walks the sidelines during the first half of an NFL football game against the Philadelphia Eagles, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions head coach Jim Schwartz walks the sidelines as snow falls during the first half of an NFL football game against the Philadelphia Eagles, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions players warm themselves during the first half of an NFL football game against the Philadelphia Eagles, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions quarterback Matthew Stafford (9) huddles with his team during a snow storm in the first half of an NFL football game against the Philadelphia Eagles, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions' Joique Bell, left, is tackled by Philadelphia Eagles' Bradley Fletcher during the first half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Philadelphia Eagles' Nick Foles, left, is tackled by Detroit Lions' Willie Young during the first half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions' Joique Bell, left, gets up with the help of Brandon Pettigrew, center, and Calvin Johnson after scoring a touchdown during the first half of an NFL football game against the Philadelphia Eagles, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Philadelphia Eagles' Nick Foles drops back during the first half of an NFL football game against the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

A fan sits in the stands at Lincoln Financial Field before an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles personnel clear snow before an NFL football game between the Philadelphia Eagles and the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions stretch before an NFL football game against the Philadelphia Eagles, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles' Nick Foles in action during the first half of an NFL football game between the Philadelphia Eagles and the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles' Nick Foles warms up as snow falls before an NFL football game against the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions' Mikel Leshoure, left, recovers a fumble as Matthew Stafford looks on during the first half of an NFL football game, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

A snowman is shown in the stands before an NFL football game between the Philadelphia Eagles and the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions' Matthew Stafford yells to his team during the first half of an NFL football game against the Philadelphia Eagles, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

In the snow, Philadelphia Eagles' Nick Foles cannot hang onto the ball during the first half of an NFL football game against the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Michael Perez)

Fans are covered with snow during the first half of an NFL football game between the Philadelphia Eagles and the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles personnel clears snow before an NFL football game between the Philadelphia Eagles and the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Fans covered with snow wait in the stands before an NFL football game between the Philadelphia Eagles and the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles huddle during the second half of an NFL football game against the Detroit Lions, Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)

Detroit Lions' Matthew Stafford, left, passes under pressure from Philadelphia Eagles' Mychal Kendricks during the second half of an NFL football game on Sunday, Dec. 8, 2013, in Philadelphia. (AP Photo/Matt Rourke)