Tennessee Titans kicker Rob Bironas kicks off to the Jacksonville Jaguars. (AP Photo/Stephen Morton)

San Diego Chargers receiver Malcom Floyd celebrates his touchdown against the Baltimore Ravens. (Gary A. Vasquez/NFL)

Indianapolis Colts cheerleader Crystal Ann has her head shaved by Blue -- the Colts mascot -- during the Indianapolis Colts' game against the Buffalo Bills. Money was raised for leukemia research in honor of head coach Chuck Pagano. (AP Photo/Darron Cummings)

New Orleans Saints wide receiver Marques Colston is upended by San Francisco 49ers strong safety Donte Whitner (31), causing an interception returned for a touchdown. (AP Photo/Bill Haber)

Jacksonville Jaguars running back Rashad Jennings holds the ball over the goal line for a 1-yard touchdown as Tennessee Titans outside linebacker Akeem Ayers (56) and outside linebacker Zach Brown try to stop him. (AP Photo/Phelan M. Ebenhack)

Miami Dolphins running back Reggie Bush stretches for a touchdown as Seattle Seahawks safety Earl Thomas attempts to tackle him. (AP Photo/Gerry Broome)

Ray Rice receives congrats from Baltimore Ravens fans following an overtime win over the San Diego Chargers. (Gary A. Vasquez/NFL)

Sprinklers come on during the second half of the Miami Dolphins' game against the Seattle Seahawks. (AP Photo/Wilfredo Lee)

Baltimore Ravens wide receiver Jacoby Jones tries to recover his fumble against the San Diego Chargers. (AP Photo/Gregory Bull)

Atlanta Falcons wide receiver Julio Jones is shoved out of bounds by Tampa Bay Buccaneers free safety Ahmad Black after a reception. (AP Photo/Brian Blanco)