Green Bay Packers linebacker Clay Matthews had setback Friday - ESPN
Packers can't stomach talk of a grudge match with Seahawks
2009 Green Bay Packers season - Wikipedia
Clay Matthews done with football, wished to have finished with Packers
Kolb forgot snap count after hit by Matthews in Eagles' season opener vs. Packers
Packers training camp: Clay Matthews misses third-straight practice - Acme Packing Company
Green Bay Packers: Clay Matthews at ease on either side of line – Twin Cities
Rams' Clay Matthews breaks jaw and will miss at least a month - Los Angeles Times
Training Camp Report: Matthews Confident In Return
Green Bay Packers: David Bakhtiari, Clay Matthews get creative
Social media reacts to game-changing penalty on Packers' Clay Matthews
Green Bay Packers' Clay Matthews blasts NFL after controversial penalty: 'I think they're getting soft'