Knockouts, especially fast ones, are impressive to even the average fan. There's an assumption in the average human mind that a fight between two people should be long, brutal and have ebb and flow.
When a boxer brutally knocks out another boxer and does so within the first round, he (or she) completely squashes that theory.
If a first-round knockout occurs in a championship bout, the utter "wow" factor of the knockout is amplified. Usually, but not always, those who make it to a shot at the champ have done their homework.
The contenders have trained and bled to get to the position they are. The champions, likewise, also worked hard to get where they are.
A complete shellacking in the first round by either contender or champion is a rare, yet completely awesome feat.
Here are the five quickest first-round knockouts.