Fans hold a sign during the second half of an NFL football game between the Buffalo Bills and the New York Jets on Sunday, Dec. 30, 2012, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Baltimore Ravens fans hold a Ray Lewis sign as they watch play against the Indianapolis Colts during the first half of an NFL wild card playoff football game Sunday, Jan. 6, 2013, in Baltimore. (AP Photo/Gail Burton)

Indianapolis Colts fans hold signs in support of coach Chuck Pagano during a week 17 NFL football game between the Indianapolis Colts against the Houston Texans in Indianapolis, Indiana on December 30, 2012. The Colts defeated the Texans 28-16. (AP Photo/Scott Boehm)

A fan of Houston Texans' J.J. Watt holds a sign during the second quarter of an NFL football game against the Jacksonville Jaguars Sunday, Nov. 18, 2012, in Houston. (AP Photo/Patric Schneider)

Nov 18, 2012; Foxboro, Massachusetts, USA; A New England Patriots fan holds up a sign during the fourth quarter against the Indianapolis Colts at Gillette Stadium. The New England Patriots won 59-24. (Greg M. Cooper/US Presswire)

A San Diego Chargers fan holds a sign showing a lack of support for San Diego Chargers head coach Norv Turner in the fourth quarter of an NFL football game against the Cincinnati Bengals Sunday, Dec. 2, 2012, in San Diego. (AP Photo/Denis Poroy)

Pittsburgh Steelers fans hold a cloth sign that reads "The Terrible Towel, Texas Size" during an NFL football game against the Dallas Cowboys on Sunday, December 16, 2012, at Cowboys Stadium in Arlington, Texas. The Cowboys defeated the Steelers in overtime, 27-24. (AP Photo/James D Smith)

A Pittsburgh Steelers fan dressed like Jesus waves a terrible towel and holds a sign saying "my dad says run the ball" during the NFL week 10 football game against the Kansas City Chiefs on Monday, Nov. 12, 2012 in Pittsburgh. The Steelers won the game in overtime 16-13. (AP Photo/Paul Spinelli)

An Philadelphia Eagles fans holds up a sign about Dallas Cowboys quarterback Tony Romo during an NFL football game Sunday, Dec. 2, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Nov 18, 2012; Foxborough, MA, USA; A New England Patriots fan holds a sign before the start of the game against the Indianapolis Colts at Gillette Stadium. (David Butler II/US Presswire)

Dec 9, 2012; San Francisco, CA, USA; San Francisco 49ers fans Megan Martin and Mike Martin hold a sign as they sit in the stands during the second quarter against the Miami Dolphins at Candlestick Park. (Kelley L Cox/US Presswire)

Dec. 16, 2012; Glendale, AZ, USA: A young Arizona Cardinals fan holds a sign against the Detroit Lions at University of Phoenix Stadium. The Cardinals defeated the Lions 38-10. (Mark J. Rebilas/US Presswire)

Dec 16, 2012; Cleveland, OH, USA; A Cleveland Browns fan holds a sign during a game against the Washington Redskins at Cleveland Browns Stadium. Washington won 38-21. (David Richard/US Presswire)

A Washington Redskins fan holds up a Washington Redskins quarterback Robert Griffin III (10) sign during the NFL game between the Philadelphia Eagles and the Washington Redskins on Sunday, November 18th 2012 in Philadelphia. The Redskins won 31-6. (AP Photo/Brian Garfinkel)

An Oakland Raiders fan holds up a "just win baby" sign as she supports the team during the NFL week 14 football game against the Denver Broncos on Thursday, Dec. 6, 2012 in Oakland, Calif. The Broncos won the game 26-13. (AP Photo/Paul Spinelli)

A fan dressed as Santa Claus holds up a signs as Chicago Bears fans watch late in the second half during the Bears' 21-13 loss to the Green Bay Packers in an NFL football game in Chicago, Sunday, Dec. 16, 2012. The win clinched the NFC North division title for the Packers. (AP Photo/Nam Y. Huh)

Washington Redskins Fans wear pig noses and display a Pig Pen sign in the stands during the NFL game between the Philadelphia Eagles and the Washington Redskins on Sunday, November 18th 2012 in Philadelphia. The Redskins won 31-6. (AP Photo/Brian Garfinkel)

A Seattle Seahawks fan holds up a sign for quarterback Russell Wilson before an NFL football game between the Seattle Seahawks and the Arizona Cardinals in Seattle, Sunday, Dec. 9, 2012. (AP Photo/John Froschauer)

An Atlanta Falcons fan celebrates by holding up a sign during an NFL football game against the New Orleans Saints, Thursday, November 29, 2012, in Atlanta. The Falcons won 23-13 (AP Photo/Paul Abell)

A Denver Broncos fan holds up a sign for Tim Tebow during a preseason NFL football game against the Buffalo Bills, Saturday, Aug. 20, 2011, in Denver. (AP Photo/Jack Dempsey)

A San Diego Chargers fan holds up a sign stating "Hi Kids sorry Mommy is working late" during the NFL week 10 football game against the Oakland Raiders on Thursday, November 10, 2011 in San Diego, California. The Raiders won the game 24-17. (AP Photo/Paul Spinelli)

Buffalo Bills fans hold a sign referring to the Buffalo Bills quarterback Ryan Fitzpatrick during the first half of an NFL football game against the Miami Dolphins, Sunday, Nov. 20, 2011, in Miami Gardens, Fla. (AP Photo/Lynne Sladky)

A Baltimore Ravens fan holds a Baltimore Ravens ' Ray Lewis sign during the first half of an NFL wild card playoff football game against the Indianapolis Colts, Sunday, Jan. 6, 2013, in Baltimore. (AP Photo/Nick Wass)

Miami Dolphins fans hold comical signs around their face during an NFL football game against the Dallas Cowboys Thursday, Nov. 24, 2011, in Arlington, Texas. (AP Photo/Sharon Ellman)

A Denver Broncos fan holds up a sign stating "...and on the 7th day, God created Tebow" during the NFL week 12 football game against the San Diego Chargers on Sunday, November 27, 2011 in San Diego, California. The Broncos won the game in overtime 16-13. (AP Photo/Paul Spinelli)

Indianapolis Colts fans display a sign in the first half of an NFL football game against the Baltimore Ravens in Baltimore, Sunday, Dec. 11, 2011. (AP Photo/Gail Burton)

A Buffalo Bills' fan holds a sign during the second half of an NFL football game against the Miami Dolphins in Orchard Park, N.Y., Sunday, Dec. 18, 2011. (AP Photo/Gary Wiepert)

Fans in the stands with sign saying "My cheating ex boyfriend is watching from couch", during an NFL game, Chicago Bears against the Green Bay Packers, week sixteen, on Sunday, December 25, 2011 at Lambeau Field in Green Bay, Wisconsin. The Packers beat the Bears 35-21. (AP Photo/David Drapkin)

A fan holds up a Hall of Fame sign in honor of Baltimore Ravens inside linebacker Ray Lewis (52) during the AFC Wild Card Playoff football game against the Indianapolis Colts on Sunday, Jan. 6, 2013 in Baltimore. The Ravens won the game 24-9. (AP Photo/Paul Spinelli)

Fans in the stands with a sign, " Girls like football too", during an NFL game, Chicago Bears against the Green Bay Packers, week sixteen, on Sunday, December 25, 2011 at Lambeau Field in Green Bay, Wisconsin. The Packers beat the Bears 35-21. (AP Photo/David Drapkin)

Green Bay Packers fan holds up a sign during a week 16 NFL football game against the Chicago Bears on December 25, 2011 in Green Bay, Wisconsin. The Packers won 35-21. (AP Photo/David Stluka)

A New Orleans Saints fan holds up a sign and cheers for her team during the NFL wildcard playoff football game against the Detroit Lions on Saturday, January 7, 2012 in New Orleans, Louisiana. The Saints won the game 45-28. (AP Photo/Paul Spinelli)

San Francisco 49ers fans hold up a sign and a t-shirt asking "Who's got it better than us? Nobody!" while cheering for their team during the NFL divisional playoff football game against the New Orleans Saints on Saturday, January 14, 2012 in San Francisco, California. The 49ers won the game 36-32. (AP Photo/Paul Spinelli)

A Baltimore Ravens fan points to his sign during the first half of an NFL divisional playoff football game against the Houston Texans in Baltimore, Sunday, Jan. 15, 2012. (AP Photo/Evan Vucci)

A New England Patriots fan with no shirt holds up a sign stating "I love Tom Brady" during the AFC Championship NFL football game against the Baltimore Ravens on Sunday, January 22, 2012 in Foxborough, Massachusetts. The Patriots won the game 23-20. (AP Photo/Paul Spinelli)

New York Giants fans displays a sign supporting Eli Manning (10) against the New England Patriots during the first half of the NFL football Super Bowl XLVI on Sunday, Feb.5, 2012, in Lucas Oil Stadium in Indianapolis, Indiana. The Giants defeated the Patriots 21-17. (AP Photo/Kevin Terrell)

A fan of Green Bay Packers' Clay Matthews holds a sign during an NFL football game against the Seattle Seahawks, Monday, Sept. 24, 2012, in Seattle. (AP Photo/Ted S. Warren)

A Cincinnati Bengals fan holds up a sign during an NFL football game against the Pittsburgh Steelers, Sunday, Oct. 21, 2012, in Cincinnati. (AP Photo/Al Behrman)

A Carolina Panthers fan holds a sign showing her favorite player Cam Newton at the Washington Redskins against the Carolina Panthers game November 4, 2012 at FedEX field in Landover, Maryland The Panthers defeated the Redskins 21-13. (AP Photo/Damian Strohmeyer)

Green Bay Packers fans hold up a sign during the NFL week 9 football game against the Arizona Cardinals on Sunday, Nov. 4, 2012 in Green Bay, Wis. The Packers won the game 31-17. (AP Photo/Paul Spinelli)

A Dallas Cowboys fan holds a sign hoping for a win against the Chicago Bears in an NFL football game Monday, Oct. 1, 2012, in Arlington, Texas. (AP Photo/Sharon Ellman)

A Jacksonville Jaguars fans jokes around behind the goal posts with a sign pointing wide right, as Chicago Bears kicker Robbie Gould warms up prior to an NFL football game, Sunday, Oct. 7, 2012, in Jacksonville, Fla. (AP Photo/John Raoux)

A newlywed couple holds up a sign during a Green Bay Packers week 8 NFL football game against the Jacksonville Jaguars Sunday, October 28, 2012 in Green Bay, Wis. The Packers won 24-15. (AP Photo/David Stluka)

A fan holds a sign referring to Chicago Bears' Julius Peppers (90) before an NFL football game against the Dallas Cowboys Monday, Oct. 1, 2012, in Arlington, Texas. (AP Photo/LM Otero)

Denver Broncos fans wields a sign against the Oakland Raiders during the first quarter of an NFL football game, Sunday, Sept. 30, 2012, in Denver. (AP Photo/David Zalubowski)

Minnesota Vikings fans hold up a sign during a Week 5 NFL football game against the Tennessee Titans Sunday, October 7, 2012 in Minneapolis. The Vikings won 30-7. (AP Photo/David Stluka)

A San Diego Chargers fan holds up a bolt up sign during the NFL week 9 football game against the Kansas City Chiefs on Thursday, Nov. 1, 2012 in San Diego. The Chargers won the game 31-13. (AP Photo/Paul Spinelli)

A Miami Dolphins fan holds a sign during the first half of an NFL football game against the Arizona Cardinals, Sunday, Sept. 30, 2012,in Glendale, Ariz. (AP Photo/Paul Connors)

Fan hold a sign referring to Chicago Bears' Matt Forte during the first half of an NFL football game against the Dallas Cowboys , Monday, Oct. 1, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Green Bay Packers fans hold up a signs during an NFL preseason week 2 football game against the Cleveland Browns on August 16, 2012 in Green Bay, Wisconsin. The Browns won 35-10. (AP Photo/David Stluka)

A fan holds a sign in the third quarter of an NFL football game between the Buffalo Bills an Houston Texans, Sunday, Nov. 4, 2012, in Houston. (AP Photo/Eric Gay)

A fan of New York Jets quarterback Tim Tebow (15) displays a sign during the NFL game between the Houston Texans and the New York Jets on Monday, October 8, 2012 in East Rutherford, New Jersey.