New Orleans Saints quarterback Drew Brees gathers his teammates for a pre game pep talk before taking on the Arizona Cardinals. (Chuck Cook/USA TODAY Sports)

The Philadelphia Eagles' DeSean Jackson stands on the field during the first half of the game against the Detroit Lions. (AP Photo/Michael Perez)

Former members of recording group Destiny's Child, Kelly Rowland, Beyonce Knowles and Michelle Williams, perform during halftime of Super Bowl XLVII. (Ben Liebenberg/NFL)

Power is lost during Super Bowl XLVII at the Mercedes-Benz Superdome in New Orleans. (Ben Liebenberg/NFL)

San Francisco 49ers WR Michael Crabtree poses for a portrait in the NFL studio in Culver City, Calif. (Ben Liebenberg/NFL)

The Jacksonville Jaguars cheerleaders perform at a tailgate party before the International Series game at Wenbley Stadium in London. (Dave Shopland/NFL)

Central Michigan offensive tackle Eric Fisher poses with a Kansas City Chiefs jersey after being selected first overall during the 2013 NFL Draft at Radio City Music Hall in New York. (Ben Liebenberg/NFL)

Baltimore Ravens players leave the field as play was suspended for a severe thunderstorm blowing through Soldier Field in Chicago. (AP Photo/Charles Rex Arbogast)

Warren Sapp, Dave Robinson, Bill Parcells, Jonathan Ogden, Curley Culp, Chris Carter and Larry Allen receive their Hall of Fame Gold Jackets at the Civic Center in Canton, Ohio. (Ben Liebenberg/NFL)

Kansas City Chiefs wide receiver Dwayne Bowe celebrates with fans after 17-16 win over the Dallas Cowboys. (AP Photo/Charlie Riedel)

Players prepare for drills at the 2013 NFL Scouting Combine at Lucas Oil Stadium in Indianapolis. (Ben Liebenberg/NFL)

Toro, the Houston Texans mascot, lowers himself into Reliant Stadium. (AP Photo/David J. Phillip)

Seattle Seahawks running back Marshawn Lynch straight arms Atlanta Falcons strong safety William Moore. (AP Photo/David Goldman)

Baltimore Ravens quarterback Joe Flacco hands the ball off to running back Ray Rice as snow falls during a game against the Minnesota Vikings. (AP Photo/Nick Wass)

Ray Lewis celebrates following his team's victory over the San Francisco 49ers in Super Bowl XLVII. (Ben Liebenberg/NFL)

Denver Broncos quarterback Peyton Manning enters the field before a game between the San Diego Chargers and the Denver Broncos at Sports Authority Field at Mile High in Denver. (Ric Tapia/NFL)