Former Cleveland Browns linebacker Clay Matthews has one son in the Super Bowl and another in the Senior Bowl
Packers: A look back at the extraordinary career of Clay Matthews III
NFL: Casey Matthews expects brother Clay to try to play – The Mercury
Klis: Matthews is Green Bay's mane man – The Denver Post
Rams release Clay Matthews after just one season, sending veteran linebacker to free agency
Cleveland Browns will induct Clay Matthews Jr. into its Ring of Honor on Sunday
Clay Matthews, former Browns linebacker, a finalist for the Pro Football Hall of Fame
Clay Matthews happy to get Week 3 win – and for his dad, too
Heavy on Browns - Happy 66th birthday to Cleveland Browns
Former Browns linebacker Clay Matthews finalist for Pro Football Hall of Fame
Clay Matthews III - Wikipedia
Packers' Matthews has football in his blood
2022 Donruss Retro 2002 #12 Clay Matthews - Cleveland Browns
Rams release Clay Matthews after just one season, sending veteran linebacker to free agency