The Dallas Cowboys and Philadelphia Eagles have a long-standing rivalry that dates back to the 1960s. The two teams have met in the playoffs several times, adding to the intensity of their rivalry.

The New York Nets and Denver Nuggets had a memorable rivalry in the ABA, highlighted by their seven-game championship series in 1976. The Nets ultimately won the series and the ABA championship.

The Boston Bruins and Montreal Canadiens have met in the playoffs more than any other two teams in NHL history, and the Canadiens hold the edge in playoff series wins.

The New York Yankees and Boston Red Sox have a storied rivalry that dates back to the late 1800s. The two teams have met in the World Series 11 times, with the Yankees holding a slight edge in wins.

The Michigan Wolverines and Ohio State Buckeyes have played each other more times than any other two teams in NCAA Division I history, with their rivalry dating back to 1897.

The Michigan Wolverines and Michigan State Spartans have a fierce rivalry in men's basketball, with their games often drawing large crowds and intense atmospheres.

The Los Angeles Galaxy and Seattle Sounders FC have won the most MLS Cup titles, with the Galaxy holding a slight edge over the Sounders.

The Buffalo Bandits and Toronto Rock have won the most NLL championship titles, with the Bandits holding a slight edge over the Rock.

The Clemson Tigers and South Carolina Gamecocks have a heated rivalry in college football, with their games often drawing large crowds and intense atmospheres.

The Portland Winterhawks and Seattle Thunderbirds have met in the playoffs more than any other two teams in WHL history, and the Winterhawks hold the edge in playoff series wins.

The Toronto Argonauts and Edmonton Eskimos have won the most CFL Grey Cup titles, with the Argonauts holding a slight edge over the Eskimos.

The North Carolina Courage and Portland Thorns FC have won the most NWSL championship titles, with the Courage holding a slight edge over the Thorns.

The Kansas Jayhawks and Missouri Tigers had a heated rivalry in college basketball before Missouri left the Big 12 Conference in 2012. The two teams still meet occasionally in non-conference play.

The Hershey Bears and Milwaukee Admirals have won the most Calder Cup titles, with the Bears holding a slight edge over the Admirals.

The Seattle Seawolves and New York Ironworkers have won the most MLR championship titles, with the Seawolves holding a slight edge over the Ironworkers.