The Arizona Cardinals are looking to challenge suspended linebacker Daryl Washington's $10 million option bonus for this year, according to ESPN.

The Cardinals have not yet paid Washington any of the bonus but they do not want to release him because doing so may not allow them to keep the money.

Washington faces at least a year-long suspension for violating the NFL's substance abuse policy. He was also banned four games last year for a similar offense.

The Cardinals exercised the option on Washington's contract in March, which includes two $5 million payments. The team plans to place Washington on the reserve-suspended list after he tested positive for marijuana.

If the Cardinals cut Washington, his salary cap number would accelerate to about $7.5 million and they may not be entitled to recover his option bonus.

The team is preparing to argue that it should not have to pay Washington the bonus because of the failed drug test.

Washington had 75 tackles, 11 pass breakups, three sacks, two interceptions and a fumble recovery in 12 games last season.