Pushed to the brink of a sweep, Pittsburgh's Sidney Crosby, Evgeni Malkin and Jordan Staal pushed back with a vengeance, helping the Penguins score nine goals in the first two periods in a 10-3 win over the Philadelphia Flyers Wednesday in their opening-round playoff series. Staal had a hat trick, Malkin scored his first two goals of the series, and Crosby added one to help the Penguins cut the series deficit to 3-1. Game 5 is Friday in Pittsburgh. Ottawa 3, Rangers 2 (OT): Kyle Turris scored at 2:42 of overtime for the Senators, tying the Eastern Conference series at two games apiece. Milan Michalek and Sergei Gonchar scored in the second period for the Senators to erase a 2-0 deficit, and Craig Anderson made 31 saves. Anton Stralman and Ryan Callahan scored power-plays goals early in the first period for the Rangers. Canucks 3, Kings 1: In Los Angeles, Daniel Sedin returned from a 12-game absence with a concussion to help keep the Vancouver Canucks' season alive with a 3-1 win over the Kings. Sedin chipped in an assist, goaltender Cory Schneider made 43 saves and top-seed Vancouver cut their best-of-seven series deficit to 3-1 and avoided being swept. Game Five is on Sunday in Vancouver.