Report: Clay Matthews Sr. dies at 88

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One of the most prominent families in the NFL lost one of its patriarchs.

According to John McClain of the Houston Chronicle, former San Francisco 49ers offensive lineman Clay Matthews Sr. died at age 88 following a long illness.

Matthews played parts of four seasons for the 49ers (1950, 53-55) and helped father a long line of productive NFL players.

Bruce Matthews was inducted into the Hall of Fame in 2007 following a 19-year career that saw him named a first-team All-Pro a whopping 10 times with 14 Pro Bowl selections at tackle for the Houston Oilers and Tennessee Oilers/Titans. Clay Matthews Jr. was a three-time All-Pro and four-time Pro Bowl section in 19 seasons with the Cleveland Browns and Atlanta Falcons.

Bruce and Clay Jr. each have two sons make the NFL as well. Bruce is father to Jake and Kevin Matthews. Jake is the left tackle for the Atlanta Falcons while Kevin played parts of five seasons for the Tennessee Titans, Washington Redskins and Carolina Panthers.

Clay Jr. is father to Green Bay Packers linebacker Clay Matthews III and Casey Matthews, who played linebacker for the Philadelphia Eagles and Minnesota Vikings.