The Canadiens are hurting as they head into Game 5 Thursday night at home. They’re down in the series to the Senators, 3-1, while the injuries pile up. Forward Brian Gionta will have surgery Friday on his torn left biceps, knocking him out for the rest of the playoffs. Teammate Lars Eller resumed skating after suffering a concussion and facial injuries after an open-ice hit in Game 1 by Ottawa defenseman Eric Gryba. Meanwhile, Canadiens coach Michel Therrien said forwards Brandon Prust and Ryan White would sit out Thursday with upper-body injuries, and goalie Carey Price is day to day with a lower-body injury . . . Penguins coach Dan Bylsma still believes in Marc-Andre Fleury, but Tomas Vokoun will start in net against the Islanders Thursday in Game 5 of their series, which is tied at two games apiece . . . Islanders defenseman Andrew MacDonald reportedly is out with a broken hand he suffered in Tuesday’s Game 4 and could miss the rest of the postseason, according to NHL.com . . . Justin Florek, Jordan Caron, and Jamie Tardif scored as the Providence Bruins beat the Hershey Bears, 3-2, in the deciding Game 5 of their first-round AHL playoff series. The Bruins advance to the Eastern Conference semifinals against the Wilkes-Barre/Scranton Penguins . . . Craig Smith had a hat trick and John Gibson made 31 saves to lead the United States over Finland, 4-1, at the IIHF World Championship in Helsinki. Also in Helsinki, Germany blanked Austria, 2-0, while Switzerland beat Slovenia, 7-1, and Sweden topped Norway, 5-1, in Stockholm . . . With the Canucks out of the playoffs, Daniel Sedin, Henrik Sedin, and Alex Edler will play for Sweden at the World Championship.