Question: In which sport can you find the Buffalo Sabres and Philadelphia Flyers?

Context paragraphs:
1974–75 Buffalo Sabres season: The 1974–75 Buffalo Sabres season was the Sabres' fifth season in the National Hockey League (NHL).  The Sabres finished in a tie for the best record in the NHL in the 1974–75 regular season after a disappointing 1974 that saw the 1973–74 team fail to return to the NHL playoffs as they had the year before.  Buffalo advanced to the Stanley Cup finals for the first time in team history to play against the rough Philadelphia Flyers (who had been recently nicknamed the "Broad Street Bullies"), a series which included the legendary Fog Game (game three of the series).  The Sabres lost the series 4–2.

Rory Fitzpatrick: Rory Brian Fitzpatrick (born January 11, 1975) is an American former professional ice hockey defenseman who played 10 seasons in the National Hockey League (NHL) for the Montreal Canadiens, St. Louis Blues, Nashville Predators, Buffalo Sabres, Vancouver Canucks and Philadelphia Flyers.  He was known as a journeyman depth player at the NHL level.  He currently serves as the head coach of the Buffalo Jr.  Sabres 12 and under squad.

1975 Stanley Cup Finals: The 1975 Stanley Cup Finals championship series was played by the Buffalo Sabres and the defending champion Philadelphia Flyers.  The Flyers would win the best-of-seven series four games to two.  This was the first Final to have two non-"Original Six" teams since the 1967 expansion, and also the first contested by any team that had joined the league "after" 1967 (the Sabres were part of the 1970 expansion).  The 1975 Flyers are the last Stanley Cup championship team to be composed solely of Canadian-born players.

2005–06 Philadelphia Flyers season: The 2005–06 Philadelphia Flyers season was the Flyers' 39th season in the National Hockey League (NHL).  The Flyers lost in the first round of the playoffs to the Buffalo Sabres in six games.

1999–2000 Buffalo Sabres season: The 1999–2000 Buffalo Sabres season was the 30th for the National Hockey League franchise that was established on May 22, 1970.  The season saw the Sabres qualify for the playoffs, but lose in the first round to the Philadelphia Flyers.

2000–01 Philadelphia Flyers season: The 2000–01 Philadelphia Flyers season was the Philadelphia Flyers' 34th season in the National Hockey League (NHL).  The Flyers lost in the first round to the Buffalo Sabres in six games.

Dainius Zubrus: Dainius Gintas Zubrus (born June 16, 1978) is a Lithuanian former professional ice hockey right winger and center who played in the National Hockey League (NHL).  He is the first Lithuanian to have played 1,000 games in the NHL.  Zubrus was drafted 15th overall in the 1996 NHL Entry Draft by the Philadelphia Flyers.  He played for the Flyers, Montreal Canadiens, Washington Capitals, Buffalo Sabres, New Jersey Devils, and San Jose Sharks.

1974–75 Philadelphia Flyers season: The 1974–75 Philadelphia Flyers season was the Philadelphia Flyers eighth season in the National Hockey League (NHL).  The Flyers repeated as Stanley Cup champions.  The 1974–75 Flyers were the last Stanley Cup champion to be composed entirely of Canadian-born players.

2000–01 Buffalo Sabres season: The 2000–01 Buffalo Sabres season was the 31st season for the team in the National Hockey League (NHL).  The Sabres finished with a 46-30-5-1 record in the regular season, and won the Conference Quarter-Finals (4-2) over Philadelphia Flyers, but lost the Conference Semi-Finals (4-3) to Pittsburgh Penguins.  It was also the final time that they made the playoffs before the 2004-05 NHL Lockout.

1997–98 Philadelphia Flyers season: The 1997–98 Philadelphia Flyers season was the Philadelphia Flyers 31st season in the National Hockey League (NHL).  The Flyers lost their quarterfinal series with the Buffalo Sabres in five games.

Supporting paragraphs: 1974–75 Buffalo Sabres season 1974–75 Philadelphia Flyers season
Answer: Hockey