Dallas Cowboys quarterback Tony Romo (9) warms up before an NFL football game against the Miami Dolphins, Sunday, Nov. 22, 2015, in Miami Gardens, Fla. (AP Photo/Lynne Sladky)

Dallas Cowboys quarterbacksTony Romo (9) and Matt Cassel (16) enter the field before an NFL football game Miami Dolphins, Sunday, Nov. 22, 2015, in Miami Gardens, Fla. (AP Photo/Lynne Sladky)

Indianapolis Colts quarterback Matt Hasselbeck, left, speaks with Atlanta Falcons quarterback Matt Ryan before the first of an NFL football game, Sunday, Nov. 22, 2015, in Atlanta. (AP Photo/David Goldman)

Tampa Bay Buccaneers' Russell Shepard, left, and Philadelphia Eagles' Connor Barwin talk before an NFL football game, Sunday, Nov. 22, 2015, in Philadelphia. (AP Photo/Julio Cortez)

St. Louis Rams cornerback Trumaine Johnson (22) warms up before an NFL football game against the Baltimore Ravens in Baltimore, Sunday, Nov. 22, 2015. (AP Photo/Gail Burton)

Houston Texans defensive end J.J. Watt (99) makes a one handed catch prior to an NFL football game against the New York Jets on Sunday, Nov. 22, 2015, in Houston. (Aaron M. Sprecher/NFL)

Washington Redskins' Robert Griffin III, right, talks with Carolina Panthers' Luke Kuechly, left, before an NFL football game in Charlotte, N.C., Sunday, Nov. 22, 2015. (AP Photo/Bob Leverone)

A security personnel waits in the snow-covered stands before an NFL football game between the Chicago Bears and the Denver Broncos, Sunday, Nov. 22, 2015, in Chicago. (AP Photo/Charles Rex Arbogast)

Denver Broncos tight end Vernon Davis warms up before an NFL football game against the Chicago Bears, Sunday, Nov. 22, 2015, in Chicago. (AP Photo/Charles Rex Arbogast)

New York Jets quarterback Ryan Fitzpatrick throws prior to an NFL football game against the Houston Texans, Sunday, Nov. 22, 2015, in Houston. (AP Photo/David J. Phillip)

Chicago Bears running back Matt Forte warms up before an NFL football game against the Denver Broncos, Sunday, Nov. 22, 2015, in Chicago. (AP Photo/Nam Y. Huh)

Seats are covered in snow before an NFL football game between the Chicago Bears and the Denver Broncos, Sunday, Nov. 22, 2015, in Chicago. (AP Photo/Nam Y. Huh)

Indianapolis Colts wide receiver Andre Johnson warms up before the first of an NFL football game between the Atlanta Falcons and the Indianapolis Colts, Sunday, Nov. 22, 2015, in Atlanta. (AP Photo/David Goldman)

Tampa Bay Buccaneers' Jameis Winston warms up before an NFL football game against the Philadelphia Eagles, Sunday, Nov. 22, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Baltimore Ravens quarterback Joe Flacco (5) warms up before an NFL football game against the St. Louis Rams in Baltimore, Sunday, Nov. 22, 2015. (AP Photo/Nick Wass)

The Houston Texans cheerleaders practice on the field prior to an NFL football game against the New York Jets on Sunday, Nov. 22, 2015, in Houston. (Aaron M. Sprecher/NFL)

Chicago Bears quarterback Jay Cutler warms up before an NFL football game against the Denver Broncos, Sunday, Nov. 22, 2015, in Chicago. (AP Photo/Nam Y. Huh)

Atlanta Falcons quarterback Matt Ryan wearing a Salute to Service hat warms up before the first of an NFL football game between the Atlanta Falcons and the Indianapolis Colts, Sunday, Nov. 22, 2015, in Atlanta. (AP Photo/John Bazemore)

Houston Texans logos are moves at NRG Stadium prior to an NFL football game between the Houston Texans and New York Jets, Sunday, Nov. 22, 2015, in Houston. (AP Photo/David J. Phillip)

Indianapolis Colts punter Pat McAfee warms up while wearing a Salute to Service cap before the first of an NFL football game between the Atlanta Falcons and the Indianapolis Colts, Sunday, Nov. 22, 2015, in Atlanta. (AP Photo/David Goldman)

Fans drive through a parking lot of Lincoln Financial Field before an NFL football game between the Philadelphia Eagles and the Tampa Bay Buccaneers, Sunday, Nov. 22, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Tampa Bay Buccaneers' Jorvorskie Lane stretches before an NFL football game against the Philadelphia Eagles, Sunday, Nov. 22, 2015, in Philadelphia. (AP Photo/Matt Rourke)

Houston Texans helmets are tested for sound prior to an NFL football game against the New York Jets, Sunday, Nov. 22, 2015, in Houston. (AP Photo/David J. Phillip)

Fans tailgate before an NFL football game between the Philadelphia Eagles and the Tampa Bay Buccaneers, Sunday, Nov. 22, 2015, in Philadelphia. (AP Photo/Matt Rourke)