The phrase "historic rivalry" refers to a long-standing competition or conflict between two individuals, groups, or teams that has spanned a significant period of time in the past. Full definition
Notre Dame and USC have one of the most historic rivalries in college football and this game in the middle of October should be a dandy. (diehardsport.com)
Borg vs. McEnroe puts the spotlight on one of the great historic rivalries in tennis, and is most energized during when the ball is in play during its depiction of matches. (thestar.com)
The former England striker, who played for both clubs despite their historic rivalry, made the claim that United should have little trouble against the Spaniards, based on how Liverpool played against them in the group stage. (caughtoffside.com)