Boxing is called the sweet science. And there are many fans who will watch, simply to see two master craftsmen engage in a chess match.
But that isn't what this is about. We're talking knockouts here. They are what makes the sport of boxing so dramatic, so unique.
Boxing is the only sport where you can lose literally every second of every round and still find a way to hit that 10-run home run in the final seconds and win. It's the only place where a massive underdog can land that lottery punch that changes the course of the sport.
There have been literally thousands of incredible knockouts in boxing history and this list doesn't seek to cover all of them. It's a springboard for discussion, debate and argument. Feel free to add your own favorites from the spectacular to the improbable.
These are the 10 most incredible knockouts in boxing history.