"I thought we did a really good job of making plays and holding onto pucks and really winning those battles with the puck," Anderson said. "Getting out of our zone tonight was an outstanding job by our [defensemen], finding that next easy pass to support the puck. … Overall, we were out of our zone pretty quickly so we didn't spend a lot of time there, which usually tires us out."
Carter Hutton made 27 saves for Buffalo (31-36-9), which lost for the 11th time in 12 games (1-10-1).
"We're just giving up too much," Sabres forward Kyle Okposo said. "We gave up, what, two tap-ins, a power-play goal, and I can't even remember the first one. It's just a lack of respect for our own net. I didn't think we were ready to play tonight, and that's pretty inexcusable. … I'm running out of things to say."
The Senators and Sabres have already been eliminated from Stanley Cup Playoff contention.
Anthony Duclair scored with a backhand shot at the edge of the crease to give the Senators a 1-0 lead at 17:07 of the first period. Gibbons redirected a slap pass from Christian Jaros to make it 2-0 at 19:49.