Boston (toe) wasn't present for Thursday's practice, Daniel Oyefusi of ESPN reports.
Pittman (foot) is warmed up with his teammates Thursday, though he remains on IR and wasn't wearing a helmet, Nick Farabaugh of PennLive.com reports.
Boston (toe) said Thursday that he's hoping to return to practice and "definitely feel(s) better" after sitting out Wednesday's practice, Zac Jackson of The Athletic reports.
Harden recorded five tackles (four solo), including 2.0 sacks, and one pass defense during the Browns' 23-22 overtime loss to the Saints in Week 9.
Schwesinger (wrist) was a limited participant in Wednesday's practice, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Ward (quadriceps) was a limited participant at practice Wednesday, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Burton (calf) didn't practice Wednesday, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Slaughter (hamstring) was a full participant in Wednesday's practice, Teresa Varley of the Steelers' official site reports.
Williams (hamstring) was a limited participant in Wednesday's practice, Mary Kay Cabot of The Cleveland Plain Dealer reports.