Spezza, Anderson key Ottawa's win over Tampa Bay
Spezza made it 2-0 during a power play at 16:32 of the second. The center extended the lead to 3-0 on an in-close goal with 7:23 left in the third, and then completed the hat trick on an empty-net goal.
Anderson is 6-1-2 against Tampa Bay. The goalie has beaten the Lightning in all three games between the teams this season.
Erik Karlsson added a goal and an assist for Ottawa, which has gone 2-0-1 in its past three games after an 0-6-1 stretch.
Mathieu Garon made a pad save on Kyle Turris' penalty shot midway through the third for the Lightning, who are 1-3-1 over the past five games.
Anderson turned aside 11 shots, including a pair by Martin St. Louis, in the second. He has two shutouts this season and 18 overall.
Karlsson put the Senators up 1-0 just 64 seconds into the game. The defenseman has scored in consecutive games.
Ottawa improved to 9-3-2 in games against Southeast Division teams.
Notes: NHL commissioner Gary Bettman attended the game. ... Tampa Bay LW Ryan Malone was back in the lineup after missing eight games because of an undisclosed upper body injury. ... The Senators are 14-11-5 on the road this season. ... The Lightning were without D Matt Gilroy (hand) and D Marc-Andre Bergeron (back). ... Senators RW Bobby Butler had two assists, giving him five assists in his past three games.