Karstens, of course, is starting tonight. Morris got to spend one day in a big-league uniform.
There should be another roster move to come, with Drew Sutton joining the 25-man roster, although Sutton isn't listed on the Pirates' lineup card, which is weird.
From David: As Charlie mentioned, Sutton wasn't on the lineup card. He will join the team in Philadelphia tomorrow. A 24 hour reprieve for someone. Apparently the Pirates gave Sutton a day to see his pregnant wife in Tampa. Not to sound insensitive, but he was living in Tampa and his wife isn't due until October. But no big deal, maybe the Pirates just wanted to go another day with another reliever and this was their out.
In other news, the Pirates released Jake Fox from AAA Indianapolis to make room for Jordy Mercer. Fox was a decent low risk pick-up, but when he wasn't called up for the first interleague go-round and Jeff Clement got hot, it became apparent that there wasn't going to be a place for him. I'm sure another team will roll the dice with a minor league contract if he wants to continue to pursue a career.