Boxing fans always dream of attending the next Sugar Ray Leonard vs. Marvin Hagler fight; a titanic clash of champions going toe to toe for glory.
Sometimes, that glory is over before it starts—or between one to fifteen seconds after, to be precise.
Some fighters just have porcelain chins and this is a tribute to all those nameless (and not so nameless) knockout victims everywhere.
Here are the fastest knockouts in sports history.