He replaces fullback Fui Vakapuna, who was signed off the Cardinals' practice roster this week by the Cincinnati Bengals.
Collins was released by the Kansas City Chiefs on Sept. 4. He was on the active roster of the Cleveland Browns last season but did not play in a game.
Collins was originally signed by Philadelphia in 2008 as a rookie free-agent out of Washington State and spent time on the practice squads of the Eagles and Browns last year.
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