Green Bay Packers' Clay Matthews reacts after sacking Chicago Bears quarterback Jay Cutler during the first half of an NFL football game Thursday, Sept. 13, 2012, in Green Bay, Wis. (AP Photo/Mike Roemer)

Green Bay Packers' Clay Matthews flips his hair after getting it wet before an NFL football game against the Tennessee Titans Sunday, Dec. 23, 2012, in Green Bay, Wis. (AP Photo/Jeffrey Phelps)

Green Bay Packers outside linebacker Clay Matthews (52) celebrates after sacking Chicago Bears quarterback Jay Cutler (6) in the second half of an NFL football game in Chicago, Sunday, Dec. 16, 2012. The Packers won 21-13 to clinch the NFC North title. (AP Photo/Nam Y. Huh)

Green Bay Packers outside linebacker Clay Matthews reacts after sacking Minnesota Vikings quarterback Christian Ponder and causing a fumble during the first half of an NFL football game Monday, Nov. 14, 2011, in Green Bay, Wis. The Vikings recovered the fumble. (AP Photo/Jeffrey Phelps)

Pittsburgh Steelers' Rashard Mendenhall runs away from Green Bay Packers' Clay Matthews during the second half of the NFL football Super Bowl XLV Sunday, Feb. 6, 2011, in Arlington, Texas. (AP Photo/Charlie Krupa)

Green Bay Packers' Clay Matthews wears a Cheesehead during media day for NFL football Super Bowl XLV Tuesday, Feb. 1, 2011, in Arlington, Texas. (AP Photo/David J. Phillip)

Green Bay Packers linebacker Clay Matthews dives toward the end zone after picking up a fumble by Dallas Cowboys quarterback Tony Romo during the second half of an NFL football game Sunday, Nov. 15, 2009, in Green Bay, Wis. The Packers got the ball on the 3-yard line. (AP Photo/Morry Gash)

Green Bay Packers' Erik Walden (93) is congratulated by Clay Matthews (52) after sacking Tampa Bay Buccaneers quarterback Josh Freeman during the first half of an NFL football game Sunday, Nov. 20, 2011, in Green Bay, Wis. (AP Photo/Jeffrey Phelps)

Green Bay Packers linebacker Clay Matthews (52) celebrates his sack against the San Francisco 49ers during an NFL football game in Green Bay, Wisconsin Saturday, Sept. 9, 2012. (AP Photo/Tom Hauck)

Green Bay Packers outside linebacker Clay Matthews during an NFL football game Sunday, Nov. 6, 2011, in San Diego. (AP Photo/Lenny Ignelzi)

Green Bay Packers' Clay Matthews (52) reacts after sacking San Francisco 49ers' Alex Smith during the second half of an NFL football game Monday, Sept. 10, 2012, in Green Bay, Wis. The 49ers won 30-22. (AP Photo/Mike Roemer)

Green Bay Packers outside linebacker Clay Matthews pressures Arizona Cardinals quarterback John Skelton first half of an NFL football game Sunday, Nov. 4, 2012, in Green Bay, Wis. between Green Bay and Arizona. The Packers won 31-17. (AP Photo/Mike Roemer)

Green Bay Packers' Clay Matthews is seen during the first half of an NFL football game against the Tennessee Titans Sunday, Dec. 23, 2012, in Green Bay, Wis. (AP Photo/Jeffrey Phelps)

Green Bay Packers outside linebacker Clay Matthews sacks New Orleans Saints quarterback Drew Brees during the second half of an NFL football game Sunday, Sept. 30, 2012 in Green Bay, Wis. The Packers won 28-27.(AP Photo/Mike Roemer)

Clay Matthews of the Green Bay Packers arrives at the 2nd Annual NFL Honors, on Saturday, Feb. 2. 2013 in New Orleans (Photo by Dario Cantatore/Invision/AP)

Notre Dame quarterback Jimmy Clausen, left, breaks a tackle by Southern California defensive end Clay Matthews during the first half of their NCAA college football game, Saturday, Nov. 29, 2008, in Los Angeles. (AP Photo/Mark J. Terrill)