So how does a team that has Stanley Cup aspirations lose to a team near the bottom of the NHL standings while handling teams at the top of the division like the Leafs and Bruins?
"We got outworked in Ottawa," Lightning defenseman Kevin Shattenkirk replied. "Frankly we just weren't ready for that work ethic that they brought. I think we thought it was going to be an easy game, and that's on us. Shame on us. They're a team over there that plays hard no matter what. They have a lot of young, good players over there, a lot of skill. If you give them time and space, just like any team in this league, they're going to make you pay. We want to make sure that we're giving them the full respect and our best game, and we'll see how they can handle that."
The Lightning never led in that Ottawa loss, falling behind 1-0 and 2-1 before Namestnikov sealed the Bolts' fate late.
"If you fall asleep on them, they're going to get you, and they've gotten a bunch of teams this year," Lightning head coach Jon Cooper said.
Tampa Bay isn't the only team to suffer a shocking loss to the Senators. In December, Ottawa has won in Edmonton, knocked off Boston by a 5-2 count and won in Columbus in overtime. The Senators are 3-2-1 over their last six games.
"They always play hard," Bolts left wing Ondrej Palat said. "They're a young team. They have a lot of speed. They just work hard. We need to match it, and we'll be fine."
The Lightning have revenge on their mind when they play the Senators tonight. They want to prove that early-season defeat to the Sens was an aberration. They also want to rebound from another demoralizing loss Saturday to the NHL-leading Washington Capitals where a 45-second span in the third period derailed a good overall performance.
"I think especially because it's a divisional game, you want to make sure against all these teams, doesn't matter if it's Boston or Ottawa, you're giving everybody that respect and getting everyone's best effort," Shattenkirk said. "There's obviously a rivalry factor when we're playing them four or five times a year, so we want to make sure we're setting the tone and setting that precedent that we're a team in the division that teams are scared of."
The Lightning have won seven straight against Atlantic Division opponents since that early-season loss to Ottawa.