Clay Matthews, Packers Wiki
File:Clay Matthews - San Francisco vs Green Bay 2012 (2).jpg - Wikimedia Commons
Clay Matthews' big sis suits up for NFL campaign
David Buehler - Wikipedia
Rams release Clay Matthews after just one season, sending veteran linebacker to free agency
File:A.J. Hawk, Clay Matthews (16274309259).jpg - Wikimedia Commons
Clay Matthews III house in Calabasas, CA (Google Maps)
Jake Matthews (American football) - Wikipedia
Clay Matthews III Has A Message To HOF Voters About His Dad
Is Clay Matthews playing football?
Stratigraphic reassessment of Grotta Romanelli sheds light on Middle-Late Pleistocene palaeoenvironments and human settling in the Mediterranean