Desperate for any help in the running game without David Johnson, the Arizona Cardinals traded for Adrian Peterson with the hope that the aging legend can provide at least some support for Carson Palmer.

The Cards will have to hope Peterson does still have something left in the tank because they’ll need to wait a bit longer to get Johnson back in the lineup. Kent Somers of the Arizona Republic reports that Cardinals head coach Bruce Arians believes the “earliest” date for Johnson’s return is Thanksgiving.

Johnson is still undergoing rehab for the dislocated wrist which landed him on injured reserve. After sitting out six weeks, he can return to practice by next week. But by Arians’ estimation, he still has some way to go before getting back onto the field.

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The Cardinals will still have six to seven games left on their schedule if Johnson does return at around Thanksgiving. Arizona plays at Houston on Nov. 19, the Sunday before Thanksgiving, and at home against the Jaguars the following week.

However, another question will be whether Arizona can remain in the playoff hunt and give him a reason to return. That will depend largely upon what Peterson can provide. If he can come anywhere close to the “All Day” of old, he may just help keep the Cardinals in contention long enough for Johnson to take his job back from him.