Sabres and Senators had a strong rivalry after the 2004–05 NHL lockout, when both teams were vying for the Northeast Division title. Ottawa had the upper hand on Buffalo during regular season games, but Buffalo beat them in the playoffs. The best known game in this rivalry occurred on February 22, 2007, which included a large fight that included both goaltenders and verbal sparring between the two coaches (Buffalo won the game 6–5). The teams have met four times in the playoffs, with Buffalo winning three series and Ottawa winning one. Ottawa also beat Buffalo in the final game of the 1996–97 season to make the playoffs for the first time since entering the league. With both teams struggling at inconsistent times, the rivalry effectively ended; however, both teams remain in the same division, and the rivalry could be renewed if another incident were to occur. As of the end of the 2017–18 season, Buffalo leads the all-time series (80–58–10–10) including a (13–8) playoff record against Ottawa. Calgary Flames vs. Winnipeg Jets (original) (1980–1996) The Flames and Jets (the original incarnation and later the modern) rivalry is unique in the NHL. Both teams compete in the Western Conference, as they are both located in Western Canada. However, Calgary plays in the Pacific Division and Winnipeg plays in the Central Division (they played in the North Division in 2021). The Flames and both the original and modern Jets met in the playoffs four times (three straight years in the 1980s; the fourth in 2020), with each team winning two series. In 1985, the Jets defeated the Flames 3–1 for their first ever playoff series victory. The next season, the Flames got their revenge by sweeping the Jets in three straight games capped off by Lanny McDonald's overtime winner in the deciding game beginning Calgary's run to the Stanley Cup Final where they lost to the Montreal Canadiens in five games. In 1987, the Jets upset the Flames in six games in the opening round in what would turn out to be their final playoff series victory for the franchise until 2012, when they were known as the Phoenix Coyotes. This was also the last time a Winnipeg-based NHL team won a playoff series until 2018 as (modern). The rivalry is based on the tradition used by their set of fans. Both the original and later the modern created the Winnipeg Whiteout