Yup. Ben aggravated the separated shoulder "issue" he's been struggling with. Considering how Leftwich did, I can't help but wonder if the Steelers aren't considering letting Roethlisberger recuperate for a game or two - just give him a chance to heal up a bit.
It's tough, though, because the Steelers only have a game on the Ravens for the division title, with the Colts and Chargers next up in the schedule.
They really need to win their division to be sure of a playoff spot and their whole remaining schedule is tough, with the exception of the Browns and the Bengals, of course