There's no denying it, fans love a knockout. Even better than a knockout is a "flash knockout."
That moment where a single strike flattens an opponent and the limbs go numb. It's perhaps the most shocking way to end a fight in the sport of mixed martial arts. The combination of small gloves combined with intense weight cuts and sloppy striking techniques have lead to a lot of these spectacular knockouts over the course of UFC history.
Some of these battles had profound impacts on the landscape of the UFC while others simply provided excitement. No matter the significance, these are all the most shocking flash knockouts in UFC history.