Diggs did not practice Wednesday or Thursday, though reporters saw him during the open period Thursday. He was not spotted on the field Friday.
The loss is real for Washington's passing game. Through four games, Diggs leads the team's wide receivers with 31 targets, 18 catches, 170 yards and three touchdowns, per NBC Sports Washington's JP Finlay.
The rest of the Commanders' injury picture
The news is better elsewhere. Quinn said quarterback Jayden Daniels is good to go. Terry McLaurin, who also missed practice this week with a hamstring injury, was back at practice Friday with his helmet in hand, and Quinn said he is headed in a good direction. Standig wrote that McLaurin sounds set to face the Giants. Sam Cosmi and running back Rachaad White are also in for Sunday, according to Standig.
McLaurin does not have a final designation yet. That comes with Friday's injury report.
What RSO owners should do
Take Diggs out of your Week 5 lineup. A hamstring that kept him out of the final two practices can linger, so do not count on him for Week 6 until he practices fully. Hold him unless your roster is in a real crunch.