Buffalo Bills head coach Sean McDermott announced Friday that rookie running back Devin Singletary will not play Sunday against the Cincinnati Bengals due to a hamstring injury, according to NFL Network's Ian Rapoport.
Singletary suffered the injury late in Buffalo's Week 2 win over the New York Giants.
With Singletary on the shelf, 36-year-old Frank Gore will be the clear No. 1 option for Buffalo out of the backfield during its home opener.
This article will be updated to provide more information on this story as it becomes available.