The NFL Players Association has filed an expedited grievance with the NFL to reinstate Adrian Peterson.

The NFLPA cited Monday "explicit language in a signed agreement" from Sept. 18, when Peterson was placed on a special commissioner's exempt list after his indictment on felony child abuse in Texas. Peterson pleaded no contest Tuesday to a lesser charge of misdemeanor reckless assault, freeing him from the court system provided he fulfills the terms of his probation.

Under the collective bargaining agreement, a hearing must be held on the expedited grievance within seven days, after which an independent arbiter will render a decision within five days from that date.

The Vikings come off their bye week still waiting for the NFL to act but are hardly pinning any plans on a possible Peterson return.

"We'd just prepare like he's not going to be here until we hear differently," coach Mike Zimmer said.

The league has offered Peterson a hearing before issuing any punishment.