This gives the Cardinals another chance to replace David Johnson, who has been sidelined since Week 1 with a fractured wrist. He is eligible to come off injured reserve on Nov. 9.
Chris Johnson, who had been signed initially to replace David Johnson, was released to make room for Peterson. Andre Ellington and Kerwynn Williams have also tried to shoulder the load, but those three backs have combined to score just one touchdown in five games in David Johnson's absence.
Arizona could use a boost in its rushing attack, which ranks last in the NFL in yards per game (51.8). The Cardinals, however, are averaging 289 yards per game through the air, which is second in the league to the New England Patriots.
Will Peterson help provide the balance the Cardinals desperately need? We ask you to be the judge.
Peterson, 32, is in the midst of his 11th NFL season. He is a seven-time Pro Bowler and seven-time All-Pro selection, and he has led the league in rushing yards three times during his career.
-- Josiah Turner