The blocked shot is an imperfect science, but when it works, it can be a game-changer. It can bring the crowd out of their seats and have the front row celebrities ducking.
Some of the most dominant defensive players in NBA history have been masters of the blocked shots.
But we're not looking for the best shot-blockers here—although a lot of them are on this list.
Instead, we're going to be looking at some of the best blocks in NBA history, the ones that leave the bench in awe and the offense frustrated in disbelief.
With that in mind, here are the best blocks in NBA history.