The Seattle Seahawks have finalized their contract with free agent defensive end Cliff Avril, adding another needed pass rusher along their defensive line.

The contract, reportedly for two years, was finalized on Thursday.

Avril immediately addresses Seattle's need to add someone who can pressure the quarterback. Avril had 9½ sacks last season, but the best of his five years with Detroit came in 2011. Avril had 11 sacks — good for seventh in the NFC — along with six forced fumbles and an interception. His long, lean frame fits the mold of the type of defensive ends that Seattle coach Pete Carroll wants.

On a conference call Thursday, Carroll said, "I don't feel like you can have enough speed pass rushers on your club."