Washington Redskins quarterback Robert Griffin III signs autographs during an NFL football training camp at Redskins Park, Friday, July 27, 2012, in Ashburn, Va. (AP Photo/Carolyn Kaster)

Courtney Stutts smiles as she displays the Carolina Panthers players autographs on her arm, before the team's NFL football practice in Charlotte, N.C., Wednesday, June 13, 2012. Stutts got four players to sign her arms as the players walked to practice. (AP Photo/Chuck Burton)

Green Bay Packers running back James Starks (44) signs autographs before NFL football training camp Saturday, July. 28, 2012, in Green Bay, Wis. (AP Photo/Mike Roemer)

Fans watch the St. Louis Rams during NFL football training camp, Monday, July 30, 2012 at the the team's training facility in St. Louis.(AP Photo/Tom Gannam)

Cincinnati Bengals running back Bernard Scott signs autographs after the NFL football team's practice at training camp, Saturday, July 28, 2012, in Cincinnati. (AP Photo/Al Behrman)

Onlookers attend the CarolinaPanthers' Fan Fest NFL football practice in Charlotte, N.C., Saturday, Aug. 4, 2012. (AP Photo/Bob Leverone)

New Orleans Saints quarterback Drew Brees (9) signs autographs after training camp at their NFL football training facility in Metairie, La., Sunday, July 29, 2012. (AP Photo/Gerald Herbert)

Dallas Cowboys running back Felix Jones signs autographs for fans during an NFL training camp Wednesday, August 1, 2012, at City of Oxnard Fields in Oxnard, California. (AP Photo/James D Smith)

Washington Redskins quarterback Robert Griffin III signs autographs for fans as he leaves the practice field during NFL football training camp at Redskins Park in Ashburn, Va., Saturday, July 28, 2012. (AP Photo/Cliff Owen)

Carolina Panthers' Jon Beason (52) signs autographs for fans following the NFL Carolina Panthers' Fan Fest football practice in Charlotte, N.C., Saturday, Aug. 4, 2012. (AP Photo/Bob Leverone)

Lauren Brock, 11, from Westminster, Md., waits for an autograph after the Washington Redskins' NFL football training camp practice at Redskins Park, Wednesday, Aug. 1, 2012, in Ashburn, Va. (AP Photo/Alex Brandon)

New England Patriots fans try for an autograph during NFL football training camp in Foxborough, Mass., Saturday, July 28, 2012. (AP Photo/Michael Dwyer)

Cleveland Browns quarterback Brandon Weeden signs autographs for fans after NFL football training camp on Sunday, July 29, 2012, in Berea, Ohio. (AP Photo/Tony Dejak)

Atlanta Falcons wide receiver Julio Jones, right, signs autographs during a training camp session, Saturday, July, 28, 2012. (AP Photo/John Amis)

Dallas Cowboys receiver Miles Austin signs autographs for fans after practice during an NFL training camp Tuesday, July 31, 2012, at City of Oxnard Fields in Oxnard, California. (AP Photo/James D Smith)

Detroit Lions running back Jahvid Best signs autographs following their NFL football training camp Thursday, Aug 2, 2012, in Allen Park, Mich. (AP Photo/Duane Burleson)

Denver Broncos quarterback Peyton Manning signs autographs for fans following the opening session of Denver Broncos NFL football training camp in Englewood, Colo., Thursday, July 26, 2012. (AP Photo/Jack Dempsey)

New York Jets quarterback Mark Sanchez greets fans and signs autographs at NFL football training camp on Sunday, July 29, 2012, in Cortland, N.Y. (AP Photo/Bill Kostroun)

Arizona Cardinals' Kerry Rhodes, left, and Michael Adams sign autographs for fans prior to NFL training camp football practice at Northern Arizona University on Saturday, July 28, 2012, in Flagstaff, Ariz.(AP Photo/Ross D. Franklin)

Arizona Cardinals' Darnell Dockett, left, signs autographs after NFL training camp football practice at Northern Arizona University, Friday, July 27, 2012, in Flagstaff, Ariz. (AP Photo/Ross D. Franklin)