Packers LB Clay Matthews explains why he agreed to the NFL's PED
What Scouts Said About LB Clay Matthews in College
Is Clay Matthews playing football?
NFL free agency: Clay Matthews, Rams agree to two-year deal
Watch: Clay Matthews Talks Retirement, Favorite Plays and More
Packers applying pressure to Matthews, Peppers to submit to PED
Linebacker Clay Matthews will return to the team's practice field
Clay Matthews & Mike McCarthy react to roughing penalty with anger
Rams LB Clay Matthews Talks Leaving Packers, Aaron Rodgers & More
Clay Matthews Wants NFL to Hire Him for Roughing the Passer