From various sources, here are Pittsburgh's lines from today's morning skate before Game 1:
Dupuis-Crosby-Guerin
Fedotenko-Malkin-Ponikarovsky
Cooke-Staal-Kennedy
Rupp-Talbot-Adams
At this point it seems likely that Chris Kunitz's hurt shoulder will keep him out for this game; which gives Ruslan Fedotenko a chance to remain as a Top 6 forward and for Rupp/Talbot to keep a sweater. Matt Cooke has reported no symptoms after getting walloped by Atlanta's Evander Kane and appears ready to re-join the lineup.
Brooks Orpik (cut on leg) skated in his normal spot with Kris Letang and is expected to be back in the lineup.