Clay Matthews on latest roughing-the-passer call: NFL is 'getting soft' - The Boston Globe
Official attempts to explain game-changing penalty on Clay Matthews
Clay Matthews wants to 'pin his ears back'
NFL: Clay Matthews hurt by Packers' decision but moves on with Rams
2013 Packers Offseason Elephant Issues: The Clay Matthews Contract - Acme Packing Company
Green Bay's Matthews makes his own way as NFL star – The Denver Post
Clay Matthews' homecoming nearly ends with an upset of unbeaten Rams
The Thread: The clock is ticking in Green Bay
Linebacker Clay Matthews will return to the team's practice field after suffering a jaw injury
Clay Matthews Value to the Packers - Last Word on Sports