We all love upsets. It's what makes Round 1 worth watching. If the higher seed won every time, the playoffs would be no fun. It doesn't mean we don't want the best teams to win, we just like to see the playoffs shaken up a bit.
Every few years we see one of the true title contenders knocked off in Round 1. It's simultaneously the worst possible fan experience (for the favorite's fans) and the greatest thing to ever happen (to the underdog's fans).
Winning a title when you're supposed to is great, but knocking off the team that should when nobody gave you a chance? That can't be matched.
Here are the 10 biggest first-round upsets in NBA history.