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FOXBORO, Mass. -- Cornerback Bradley Fletcher could sit out his second consecutive game for the New England Patriots.

Fletcher, who was a healthy scratch in Week 3 against the Jacksonville Jaguars, was added to the Patriots' injury report Thursday with a hamstring ailment.

Fellow cornerback Tarell Brown remained limited with a foot injury, while rookie defensive end Trey Flowers was limited with shoulder and knee ailments.

Offensive lineman Ryan Wendell was a full participant for his second straight practice. An illness kept him from practicing for over two weeks.

Malcolm Butler is expected to start at left cornerback for the Patriots. If Fletcher and Brown can't play Sunday against the Dallas Cowboys, then Logan Ryan and Justin Coleman would serve as the Patriots' No. 2 and 3 cornerbacks.

Cowboys starting weak-side linebacker Sean Lee was limited in practice despite suffering a concussion Sunday night. He sat out of practice Wednesday.

Thumbnail photo via David Butler II/USA TODAY Sports Images