Seattle Seahawks wide receiver DK Metcalf is listed as doubtful to play against the visiting Buffalo Bills on Sunday.

Metcalf sustained a Grade 1 strain of the medial collateral ligament in his knee last Sunday in the Seahawks’ 34-14 victory over the Atlanta Falcons.

Seattle head coach Mike Macdonald told reporters on Friday that there’s a chance Metcalf can play against Buffalo despite failing to participate in practice all week.

“It’s doubtful right now for the game,” Macdonald said. “It’s not out of the question, 100 percent yet so we will take it to Sunday, and we’ll go from there.”

Metcalf, 26, leads the Seahawks in receiving yards (568) and receiving touchdowns (three) to go along with 35 catches in seven games this season. Jaxon Smith-Njigba, who has a club-best 37 receptions, and Tyler Lockett will be looked upon to pick up the slack should Metcalf sit out for Seattle (4-3).

Running back Kenneth Walker III does not carry an injury designation after returning to a full practice on Friday. He had been nursing an illness.

Nose tackle Cameron Young (knee) is doubtful to face Buffalo (5-2), while cornerbacks Tre Brown (ankle) and Nehemiah Pritchett (ankle) and defensive end Mike Morris (ankle) are questionable.

“Tre practiced today and is trending positively for the game,” Macdonald said. “Anything can happen between now and then but (we’re) optimistic with Tre.”