Dorance Armstrong: Everything you need to know

Coach Dan Quinn said Monday that Armstrong (knee) will miss the remainder of the season, Commanders writer Ben Standig reports. Armstrong suffered the knee injury in Sunday's loss to the Cowboys after logging just four defensive snaps. The 28-year-old defensive lineman's season is over after compiling 24 tackles (16 solo), including a team-high 5.5 sacks. Washington already has several other edge defenders on injured reserve, so the team may need to look outside the organization for help at the position.

Armstrong is expected to miss time after sustaining a knee injury in Sunday's 44-22 loss to the Cowboys, Nicki Jhabvala of The Washington Post reports. The veteran defensive end sustained a knee injury early in the first quarter of Sunday's loss, and it now appears it's serious enough for him to miss time. Armstrong has been Washington's most effective pass rusher through seven games, recording 24 total tackles, including 5.5 sacks. Preston Smith is currently the only healthy Commanders defensive end, with Armstrong, Javontae Jean-Baptiste (pectoral), Deatrich Wise (quadriceps) and Drake Jackson (knee) all dealing with injuries.

Armstrong (knee) has been ruled out for the rest of Sunday's game against the Cowboys. Armstrong sustained a knee injury during the Commanders' first defensive possession of the game, which is severe enough for him to be sidelined for the rest of Sunday's NFC East contest. The Commanders will turn to Eddie Goldman, Jer'Zhan Newton and Sheldon Day to pick up the slack at defensive end in Armstrong's absence.