Updated

Three key members of the Pittsburgh Penguins will miss Monday's game against the Ottawa Senators.

Defenseman Kris Letang is out with a case of food poisoning, starting goaltender Marc-Andre Fleury is awaiting the birth of his child, while rookie forward Beau Bennett will be out with an unspecified upper-body injury.

The top seed in the Eastern Conference will have Tomas Vokoun in net, with recent signee Eric Hartzell -- from national runner-up Quinnipiac University -- added to the roster for his first taste of NHL action as Vokoun's backup.

Vokoun stopped 38-of-40 shots in a 3-2 win at Boston on Saturday.