Anders Nilsson stopped 34 shots for his second shutout of the season as the Senators beat the Blues 2-0 on Thursday night. Christian Wolanin and Chris Tierney scored to help Ottawa snap a three-game losing streak. The shutout was Nilsson's sixth of his career.
Defenseman Erik Brannstrom and forward Max Veronneau made their NHL debuts for the rebuilding Senators.
Jake Allen made 19 saves in the loss for the Blues.
The Senators opened the scoring with 6:33 left in the second when Wolanin took a cross-ice pass from Mikkel Boedker. Wolanin had an empty net to shoot at as Allen and the rest of the Blues were focusing on Boedker.
Tierney scored into an empty net with 57 seconds to play.
The Blues at Pittsburgh on Saturday.