Clay Matthews #52 roughing the Passer penalty Packers/Vikings
Clay Matthews keeps getting screwed by the NFL roughing the passer rule
NFL seemingly walks back roughing the passer rules without making change
Viral video critiques NFL's 'roughing the passer' calls
Clay Matthews & Mike McCarthy react to roughing penalty with anger, confusion - Acme Packing Company
Lions avoiding flags under tougher roughing-the-passer rules
With roughing-the-passer calls, NFL is guilty of piling on already disadvantaged defenders - The Boston Globe
Sean Considine: New roughing the passer rule is ruining the NFL
NFL: Ridiculous Clay Matthews roughing the passer penalty was correct, will be 'teaching tape'
Vikings' Sheldon Richardson: Penalty on Packers' Clay Matthews 'trash call'