The Arizona Cardinals have acquired Adrian Peterson for an undisclosed 2018 draft pick.

Peterson signed with the New Orleans Saints in the offseason but their backfield was crowded while the Cardinals are without David Johnson.

The Cardinals released Chris Johnson to create a roster spot for Peterson.

"We are always on the lookout for opportunities to improve our team and we look at this as one of those opportunities," general manager Steve Keim said in a statement. "What Adrian has accomplished in this league is well-established. Our need for a spark in our running game right now is also obvious and we are excited to give him the chance to provide that."