It’s been a tough six weeks so far for the Dallas Cowboys defense. That unit ranks last in the NFL in passing defense and 31st in points allowed.

After a pair of road games against the New York Jets and Carolina Panthers, Dallas is home in Week 7 to take on NFC East foe Washington. The Commanders are looking to bounce back after a last-minute loss to the Chicago Bears on “Monday Night Football” in Week 6.

Dallas’ defense will have to slow them down without cornerback Trevon Diggs for a bizarre reason.

Cowboys coach Brian Schottenheimer said the two-time Pro Bowler suffered a concussion at home Thursday night and won’t play Sunday against the Commanders, per The Athletic’s Jon Machota.