Steelers preparing for Josh McCown, but no guarantee he will be under center

The Pittsburgh Steelers are preparing for the Cleveland Browns to invade Heinz Field in Week 10 of the NFL regular season, but the Steelers aren't sure which quarterback they will be facing Sunday.

Josh McCown, the team's starting quarterback, has broken ribs which are currently healing, leaving his availability for the game this weekend in doubt. McCown was a limited participant in practice Wednesday, and in live team drills it was Johnny Manziel who was the quarterback, as McCown watched.

#Browns McCown (ribs) said he's still in pain but holding out hope he can play against #Steelers Sunday.

— Mary Kay Cabot (@MaryKayCabot) November 11, 2015

#Browns Pettine said he'll revisit the McCown (ribs) decision Thurs morning and go from there. Doesn't have drop dead time to name starter

— Mary Kay Cabot (@MaryKayCabot) November 11, 2015

Head coach Mike Pettine isn't about to tip his hand in regards to who will be under center when the Browns make the brief trip to the steel city. However, there is a huge drop off in talent and expectations with Manziel under center compared to the veteran McCown.

In other notable injury news from Cleveland, both Joe Haden and Donte Witner, both dealing with concussions, did not participate in Wednesday's practice, but both will have to pass the NFL protocol before being cleared to play this weekend at Heinz Field.