The veteran was called for a 15-yard penalty in the third quarter of Sunday's game against the Washington Redskins after sacking Alex Smith. According to NFL Football Operations, the officials followed the rules correctly:
Packers coach Mike McCarthy was furious with the call and was seen screaming at a referee:
Matthews was also called for roughing the passer in Week 2 against the Minnesota Vikings, which turned out to be a game-changing play in an eventual 29-29 tie.
While he wasn't fined, he called it a "terrible call" after the game, per Rob Demovsky of ESPN.
Fans, coaches and players around the league have been confused about the changes to the rulebook this season that have led to more personal foul calls in the name of player safety. Matthews falls in that category, and he likely won't be happy about this ruling either.