Casey Matthews of the Philadelphia Eagles and Clay Matthews of the Green Bay Packers -- OC football signed by both brothers........ NFL fans, this is a once-in-a-lifetime gift! Clay Matthews III (born May 14, 1986) is an American football linebacker for the Green Bay Packers of the National Football League (NFL). He played college football for the University of Southern California (USC). He was drafted by the Packers 26th overall in the 2009 NFL Draft. At the end of the 2010 season, ESPN ranked him as one of the best linebackers in the NFL. Casey Christopher Matthews (born January 16, 1989) is an American football linebacker for the Philadelphia Eagles of the National Football League (NFL). He was drafted by the Eagles in the fourth round of the 2011 NFL Draft. He played college football at the University of Oregon.