FILE - This 1971 file photo shows Detroit Lions' Alex Karras. The Detroit Free Press and Detroit News reported Monday, Oct. 8, 2012, that the former All-Pro defensive lineman and actor has kidney failure and has been given only a few days to live. Lions president Tom Lewand says the NFL football franchise is deeply saddened to learn of Karras' condition. (AP Photo/File)
Minnesota Vikings wide receiver Percy Harvin (12) after returning a kickoff for a touchdown against the Detroit Lions to start their NFL football game Sunday, Sept. 30, 2012, in Detroit. (AP Photo/Duane Burleson)
Detroit Lions quarterback Matthew Stafford reaches back to pass during the first quarter of an NFL football game against the San Francisco 49ers in San Francisco, Sunday, Sept. 16, 2012. (AP Photo/Marcio Jose Sanchez)
Green Bay Packers running back Ryan Grant in action against the Detroit Lions during an NFL football game Sunday, Jan. 1, 2012, in Green Bay, Wis. (AP Photo/Matt Ludtke)
Detroit Lions quarterback Matthew Stafford before of an NFL football game against the San Francisco 49ers in San Francisco, Sunday, Sept. 16, 2012. (AP Photo/Marcio Jose Sanchez)
San Francisco 49ers running back Frank Gore, right, carries the ball past Detroit Lions defensive back Drayton Florence, left, during the second quarter of an NFL football game in San Francisco, Sunday, Sept. 16, 2012. (AP Photo/Tony Avelar)
St. Louis Rams quarterback Sam Bradford (8) gets set under center Robert Turner (59) during an NFL game against the Detroit Lions in Detroit, Sunday, Sept, 9, 2012. (AP Photo/Rick Osentoski)
St. Louis Rams quarterback Austin Davis (9) passes the ball as Detroit Lions defensive end Willie Young (79) pressures him during an NFL game in Detroit, Sunday, Sept, 9, 2012. (AP Photo/Rick Osentoski)
New Orleans Saints running back Darren Sproles (43) runs up field as Detroit Lions outside linebacker Justin Durant (52) and Detroit Lions defensive tackle Nick Fairley (98) defend during the second half of an NFL wild card playoff football game Saturday, Jan. 7, 2012, in New Orleans. (AP Photo/Gerald Herbert)
**FILE** New Orleans Saints head coach Sean Payton yells during the first half of the Saints' 45-28 wild-card playoff victory against the Detroit Lions in New Orleans on Jan. 7, 2012. (Associated Press)
New Orleans Saints head coach Sean Payton walks the sidelines during the first half of an NFL wild card playoff football game against the Detroit Lions, Saturday, Jan. 7, 2012, in New Orleans. (AP Photo/Bill Haber)
New Orleans Saints quarterback Drew Brees looks for a receiver as Detroit Lions defensive end Kyle Vanden Bosch pursues during the first half of the wild-card playoff football game Saturday, Jan. 7, 2012, in New Orleans. (AP Photo/Gerald Herbert)