Pittsburgh Steelers wide receiver George Pickens is inactive for Sunday’s game against the visiting Cleveland Browns due to a hamstring injury that led to his addition to the injury report on Friday.

Pickens, who was questionable to play in Sunday’s game, was flagged twice for unsportsmanlike conduct in Pittsburgh’s 44-38 victory over the Cincinnati Bengals last Sunday. That prompted Steelers head coach Mike Tomlin to say Pickens must “grow up in a hurry.”

Pickens has a team-high 55 receptions (90 targets) for 850 yards and three touchdowns this season. Pittsburgh will look to lean on Mike Williams, Van Jefferson, Calvin Austin III, Scotty Miller and Ben Skowronek in his absence.

The Steelers (9-3) also listed the following players as inactive: quarterback Kyle Allen, defensive back Cory Trice, guard Max Scharping and defensive lineman Dean Lowry.

The Browns (3-9) ruled quarterback Bailey Zappe, wide receivers Cedric Tillman and Jamari Thrash, running back D’Onta Foreman, cornerback Chigozie Anusiem, defensive tackle Sam Kamara and defensive end James Houston as inactive.