Los Angeles Lakers vs. Boston Celtics (Basketball)

If the Los Angeles Lakers and Boston Celtics were in a rom-com, they'd be the couple who can't stand each other but everyone knows they're endgame. This rivalry? It's the NBA's gift that keeps on giving—heartbreaks, triumphs, and drama that even soap operas can't match. Lakers fans can't decide what's worse: losing to the Celtics, or admitting they secretly respect them. Celtics fans? They've turned hating the Lakers into a full-time job. In the Greatest Sports Rivalries of All Time, picking a side isn't just recommended, it's practically mandatory!