There are few, if any, sports more dramatic than professional boxing.
In baseball, you know you're going to need to settle in for nine innings. In football, the clock is going to run for 60 minutes. In basketball, you're going four quarters no matter what happens.
In boxing, literally any second of any round could be the end. You could blink and miss it. That's why people tune in, and why boxing in so dramatic.
Fans love knockouts. They love seeing that perfect shot, or shots, land and someone go down. Luckily for the fans, 2013 has been especially good to us.
These are the 10 best knockouts, thus far, of 2013.