The Penguins might have a full, conventional lineup when they face the Islanders tonight at 7:08 at PPG Paints Arena.
Or they might be able to dress just 19 players, with only 10 of them being forwards.
Or perhaps they will have to split the difference, having 20 guys in uniform, but with seven of those -- one more than usual -- being defensemen.
All of this uncertainty stems from not knowing whether Bryan Rust and/or Even Rodrigues, both of whom left their 4-3 shootout loss in Long Island Tuesday because of illness, will be healthy enough to play this evening.