from the wiki
William Clay Matthews Sr. (August 1, 1928 – March 23, 2017) was an American football tackle and patriarch of the Matthews family of football players. Matthews played for four seasons with the San Francisco 49ers of the NFL, the first in 1950. His career was interrupted by the Korean War, and Matthews became a paratrooper for the Army’s 82nd Airborne Division. In 1953, he returned to the 49ers for three more seasons. He played college football at Georgia Tech and was selected in the 25th round of the 1949 NFL Draft by the Los Angeles Rams, but never played for them.
After completing his NFL career, he began working in the business world, eventually becoming the president of Bell & Howell.
His father, Matty Matthews, coached boxing, baseball, and track at The Citadel in Charleston, South Carolina.
He is the father of Pro Bowler Clay Matthews Jr. and Pro Football Hall of Famer Bruce Matthews, as well as the grandfather of Super Bowl Champion and Los Angeles Rams linebacker Clay Matthews III, Kevin Matthews (played center with the Carolina Panthers and Tennessee Titans), Jake Matthews (plays tackle on the Atlanta Falcons as of 2018) and Casey Matthews (played linebacker for the Minnesota Vikings and Philadelphia Eagles).
On March 23, 2017, Matthews died at age 88 in Mount Pleasant, South Carolina.
So it’s:
Clay Matthews I
who is the father of
Clay Matthews II, great Cleveland LB
Bruce Matthews, great Houston OL
And grandfather (through CM II) of GB & now Rams LB Clay Matthews III.
Also CM II & his son, CM III, are the only father-son tandem to be named defensive player of the week in the NFL.
CM II is the oldest player in NFL history to record a sack (at 40 years old with the Falcons in 1995). CM III is only 33.
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