PITTSFORD, N.Y. — Buffalo Bills receiver Marquise Goodwin is being evaluated for a possible concussion sustained during practice on Tuesday.

Coach Rex Ryan would only say the player was placed in the NFL's concussion protocol, which makes it unlikely Goodwin will play in Buffalo's preseason game at Washington on Friday.

The fourth-year player was hurt when the back of his head slammed against the turf while attempting to make a catch in the end zone during a red-zone drill.

Ryan says he didn't have an update on the status of right tackle Jordan Mills, who hurt his knee and did not return.

Ryan expects Watkins and linebacker Manny Lawson to make their preseason debuts Friday. Watkins has practiced the past two weeks since recovering from surgery in April to repair a stress fracture in his left foot. Lawson missed the first two weeks of training camp with a partly torn chest muscle.

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