"Porter missed the last eight games with a knee injury that required surgery earlier this season. Porter wasn't going to play even if he had returned healthy. Sam Acho has played well as Porter's replacement.

Porter never provided the pass rush the Cardinals hoped when they signed him in 2010. He had five sacks in 14 games last season and accepted a paycut from $5.75 million to $1.5 million in 2011. This is the last year of his contract."