Clay Matthews Sr., Jr. and III
The Matthews family brand grew even bigger after Clay Matthews III helped lead the Green Bay Packers to a Super Bowl win in February 2011. Casey Matthews (not pictured), the brother of Clay Matthews III, also led the Oregon defense to a national championship appearance this past season and has entered the 2011 NFL Draft. Their father, Clay Matthews Jr., was an All-America at USC and played 19 seasons in the NFL. Clay Matthews Sr. played four seasons with the San Francisco 49ers in the 1950s.