FLOWERY BRANCH, Ga. — The Atlanta Falcons will be without wide receiver Darnell Mooney for a second time this season.

Mooney, the Falcons’ No. 2 wide receiver, has been ruled out for “Monday Night Football” against the Buffalo Bills because of a hamstring injury, the team announced Saturday.

Mooney injured the hamstring in the Falcons’ win over the Washington Commanders in Week 4. Atlanta had a bye last week. This is Mooney’s second injury of the summer and early fall. He also injured his right shoulder diving for a Michael Penix Jr. pass on the first day of training camp July 24 before missing all of camp and Week 1.

The Falcons are expected to ask for more from second-year wide receiver Casey Washington with Mooney out, in addition to other starters Drake London, Ray-Ray McCloud III and tight end Kyle Pitts.

Mooney has seven catches for 79 yards in three games this season. Last year, he had 64 catches for 992 yards and a career-high five touchdowns.

Falcons top cornerback A.J. Terrell Jr., who missed the Commanders game with a hamstring injury, carries no injury designation heading into Week 6.