Christopher Horner/Pittsburgh Tribune-Review / Christopher Horner
Pittsburgh Steelers tight end Heath Miller catches apass with a little help from the Texans' Brian Cushing during the second quarter Sunday October 2, 2011 at Reliant Stadium in Houston.
Heinz Kluetmeier/Sports Illustrated
Tight End Aaron Hernandez (81) of the New England Patriots losing his helmet on a hard tackle by Linebacker David Harris (52) of the New York Jets Jets.
Marcio Jose Sanchez/Associated Press / ASSOCIATED PRESS
Kansas City Chiefs free safety Kendrick Lewis (23) runs past a diving Oakland Raiders quarterback Kyle Boller (7) on a 59-yard interception for a touchdown in the first quarter of an NFL football game in Oakland, Calif., Sunday, Oct. 23, 2011.
Ezra Shaw/Getty Images / Getty Images
Malcom Floyd #80 of the San Diego Chargers jumps up for a pass in the endzone at O.co Coliseum on January 1, 2012 in Oakland, California.
Matt Detrich/Indianapolis Star
Chiefs fans scream for a penalty as Chiefs wide receiver Dwayne Bowe stretches to pull in a touchdown against Colts defensive back Jacob Lacey while the referee prepares to throw a pass interference flag in the second half against the Kansas City Chiefs at Lucas Oil Stadium on Sunday, October 9, 2011. The Colts lost 28-24.
Jeff Roberson/Associated Press
Green Bay Packers cornerback Pat Lee, right, attempts to tackle Indianapolis Colts running back Delone Carter during the third quarter of an NFL preseason football game in Indianapolis, Friday, Aug. 26, 2011.
Ezra Shaw/Getty Images
Alex Smith #11 of the San Francisco 49ers runs in for a touchdown against the New Orleans Saints during the fourth quarter of their NFC Divisional playoff game at Candlestick Park on January 14, 2012 in San Francisco, California.
Matt Stone/Boston Herald
Pittsburgh Steelers strong safety Troy Polamalu tackles New England Patriots wide receiver Wes Welker as quarterback in the fourth quarter of a NFL game against the Pittsburgh Steelers at Heinz Field Sunday, October 30, 2011.
New England Patriots tight end Rob Gronkowski (top) scores a touchdown over Kansas City Chiefs linebacker Derrick Johnson in the second half of their NFL football game in Foxborough, Massachusetts November 21, 2011.
David Maialetti/Philadelphia Daily News
Eagles' quarterback Michael Vick pauses in the player's tunnel during player introductions as they prepare to face the Cowboys at Lincoln Financial Field in Philadelphia, Pa. on October 30, 2011.
Harry Scull Jr./Jacksonville Jaguars
Jacksonville Jaguar kicker Josh Scobee is carried on the back by linebacker Daryl Smith thru the tunnel at Bank of America Stadium prior to second half action against the Carolina Panthers on Sunday, September 25, 2011 .
David J. Phillip/Associated Press / AP
Houston Texans inside linebacker Brian Cushing, right, reacts after being hit by Cleveland Browns' Shawn Lauvao, as T.J. Ward, left, holds him off, in the second quarter of an NFL football game on Sunday, Nov. 6, 2011, in Houston.
Mike Nowak/San Diego Chargers
United States Marine Corps personnel unveil a large American flag before the San Diego Chargers play against the Minnesota Vikings on September 11, 2012 at Qualcomm Stadium in San Diego, California.
Green Bay Packers linebacker Clay Matthews stares down Kansas City Chiefs quarterback Kyle Orton during the game on Sunday, Dec. 18, 2011 at Arrowhead Stadium in Kansas City, Missouri.
Peter Read Miller/Sports Illustrated
NFL referee Terry McAulay (77) during the coin toss with the Dallas Cowboys and Denver Broncos players before their preseason game at Cowboys Stadium.
Thomas B. Shea/Getty Images
Head coach Hue Jackson of the Oakland Raiders tries to hold back tears during a moment of silence for Oakland Raiders owner, Al Davis . The Raiders played the Houston Texans on October 9, 2011 at Reliant Stadium in Houston, Texas. Raider owner, Al Davis died at age 82 at his home Saturday morning. The Raiders won 25 to 20.
Christian Petersen/Getty Images
Wide receiver Jesse Holley #16 of the Dallas Cowboys warms up before the NFL game against the Arizona Cardinals at the University of Phoenix Stadium on December 4, 2011 in Glendale, Arizona.