...the sidelines with teammates Richard Quinn, left, and Brandon Stokley (14) during the second half of an NFL football game against the Washington Redskins, Sunday, Nov. 15, 2009, in Landover, Md. Washington won 27-17...

...Francisco 49ers on October 2, 1988, at Candlestick Park in San Francisco, California. (Photo by Al Messerschmidt/NFL

...Bengals linebacker Brandon Johnson (59) hugs defensive tackle Pat Sims (90) in the second half of an NFL football game, Sunday, Nov. 8, 2009, in Cincinnati. (AP Photo/Ed Reinke

...Photo by Jean Baptiste Lacroix/WireImage) Dallas Cowboys wide receiver Roy E. Williams smiles during a preseason NFL football game against the Tennessee Titans, Friday, Aug. 21, 2009, in Arlington, Texas. (AP Photo/Matt Slocum...

...Giants quarterback Eli Manning sits on the ground after being knocked down during the second quarter an NFL football game against the Philadelphia Eagles on Sunday, Nov. 1, 2009, in Philadelphia

...Bay Packers runs with the ball against Keith Lewis #28 of the San Francisco 49ers during an NFL game at Monster Park on December 10, 2006 in San Francisco, California

Dallas Cowboys wide receiver Miles Austin (19) scores in the first half of an NFL football game against the Atlanta Falcons, Sunday, Oct. 25, 2009, in Arlington, Texas

New England Patriots running back BenJarvus Green-Ellis during the second quarter of a NFL football game at Gillette Stadium in Foxborough, Mass. Sunday, Oct. 18, 2009

...Quarterback Kyle Orton #8 of the Denver Broncos delivers a pass against the New England Patriots during NFL action at Invesco Field at Mile High on October 11, 2009 in Denver, Colorado

MINNEAPOLIS - SEPTEMBER 27: Percy Harvin #12 of the Minnesota Vikings returns a kickoff during an NFL game against the San Francisco 49ers at the Hubert H. Humphrey Metrodome, on September 27, 2009 in...

Cincinnati Bengals guard Bobbie Williams (63) after an NFL football game against the Pittsburgh Steelers, Sunday, Sept. 27, 2009, in Cincinnati. (AP Photo/Ed Reinke

New Minnesota Vikings quarterback Brett Favre throws a pass during NFL football training camp on Tuesday, Aug. 18, 2009 in Eden Prairie, Minn

...Jones #20 of the New York Jets carries the ball against the San Francisco 49ers during an NFL game on December 7, 2008 at Candlestick Park in San Francisco, California

...Donovan McNabb talks on the phone to the offense coordinators late in the fourth quarter of an NFL football game with the Washington Redskins, Sunday, Oct. 5, 2008, in Philadelphia. The Eagles had just been...

...Atlanta Falcons in Indianapolis, Sunday, Dec. 14, 2003. Harrison and Manning are now the authors of the NFL's how-to manual on flawless play