TEMPE, Ariz. (AP) The Arizona Cardinals confirmed the signing of veteran defensive end/outside linebacker Dwight Freeney and placed linebacker Kenny Demens on injured reserve Tuesday.

Freeney's signing came after the Cardinals' top outside pass rusher, Alex Okafor, went down with a calf injury in Sunday's 42-17 victory at Detroit.

The 35-year-old Freeney, a seven-time Pro Bowl player and three-time first-team All Pro, ranks fifth among active players in career sacks with 111 1/2 and led the league with 16 sacks in 2004.

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His best years came with the Indianapolis Colts from 2002 through 2012. He was with the San Diego Chargers the past two seasons before being released in the offseason.

Demens, a significant contributor on special teams, tore an ACL in the Lions game.

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AP NFL websites: http://pro32.ap.org and http://twitter.com/AP-NFL