Georgia's Matthew Stafford, right, holds up a jersey with NFL commissioner Roger Goodell, after the Detroit Lions selected Stafford as the No. 1 overall pick in the NFL Draft at Radio City Music Hall Saturday, April 25, 2009, in New York. (Ben Liebenberg/NFL)

Detroit Lions quarterback Matthew Stafford (9) during the first half of an NFL football game against the New Orleans Saints at the Louisiana Superdome in New Orleans, Sunday, Sept. 13, 2009. (AP Photo/Bill Feig)

Detroit Lions quarterback Matthew Stafford (9) during the first half of an NFL football game against the Detroit Lions in Chicago, Sunday, Oct. 4, 2009. Chicago won 48-24. (AP Photo/Nam Y. Huh)

Detroit Lions quarterback Matthew Stafford (9) and running back Kevin Smith, front right, celebrate Smith's 25-yard touchdown-reception against the Cleveland Brown in the second quarter of an NFL football game Sunday, Nov. 22, 2009, in Detroit. (AP Photo/Duane Burleson)

Detroit Lions quarterback Matthew Stafford audibles against the Cleveland Browns in the first quarter of an NFL football in Detroit, Sunday, Nov. 22, 2009. (AP Photo/Paul Sancya)

Detroit Lions quarterback Matthew Stafford (9) throws against the Washington Redskins during the second quarter of their NFL football game in Detroit, Sunday, Oct. 31, 2010. (AP Photo/Paul Sancya)

Detroit Lions quarterback Matthew Stafford (9) before the NFL football game against the New York Jets at Ford Field in Detroit, Sunday, Nov. 7, 2010. New York Jets won 23-20 in overtime. (AP Photo/Rick Osentoski)

Detroit Lions quarterback Matthew Stafford (9) looks downfield for a receiver during a game between the Detroit Lions and the Tampa Bay Buccaneers. The Lions defeated the Buccaneers 27-20 in the first game of the regular NFL season on Sunday, Sept. 11, 2011, at Raymond James Stadium in Tampa, Florida. (AP Photo/Margaret Bowles)

Detroit Lions quarterback Matthew Stafford (9) passes the ball in the first quarter of an NFL football game against the Atlanta Falcons in Detroit, Sunday, Oct. 23, 2011. (AP Photo/Rick Osentoski)

Quarterback Matthew Stafford #9 of the Detroit Lions drops back to pass against the New Orleans Saints during their NFL wildcard playoff football game on Saturday, January 7, 2012 in New Orleans, LA. The Saints won the game 45-28. (AP Photo/Thomas E. Witte)

Detroit Lions quarterback Matthew Stafford throws against the Minnesota Vikings in the third quarter of an NFL football game in Detroit, Sunday, Sept. 20, 2009. (AP Photo/Paul Sancya)

FILE - In this Sept. 27, 2009, file photo, Detroit Lions quarterback Matthew Stafford celebrates with fans after the Lions beat the Washington Redskins 19-14 in an NFL football game in Detroit. The Lions ended their 19-game losing streak with the victory. (AP Photo/Paul Sancya, File)

Detroit Lions quarterback Matthew Stafford (9) looks to pass as Washington Redskins' Brian Orakpo (8) is held off by a teammate in an NFL football game Sunday, Sept. 27, 2009 in Detroit. (AP Photo/Duane Burleson)

Georgia quarterback Matthew Stafford (7) celebrates his rushing touchdown against Auburn during the second half of a college football game, Saturday Nov. 11, 2006 in Auburn, Ala. Georgia won 37-15. (AP Photo/Todd Bennett)

Georgia quarterback Matthew Stafford throws a pass during the second half of an NCAA college football game against Kentucky in Lexington, Ky., Saturday, Nov. 8, 2008. Stafford threw for 376 yards and three touchdowns in their 42-38 win. (AP Photo/Ed Reinke)