Mike Tyson insome of his classic battles and knockouts. Enjoy!

This video shows just how powerful K1 truely is. The best fighting on the planet has been squeezed into this clip. Enjoy!!!!!...

Mar 02: All the best knockouts in Strikeforce featuring such names as Tank Abbott and Cung Le. (NBC Sports)

Here are the most horrific and painful knockouts of 2011. I'm pretty sure if I ever found myself in one of these situations, ...

Learn the inside story of the UFC best knockouts in this UFC fights video. Expert: Phil Nurse

By sitiyzal Some of the most bone crunching hits in boxing history. Check out Sitiyzal's Middleweight Video: www.youtube.com ...

Body knockouts rarely happen, but when they do, they leave an opponent wide open for even more punishing kicks to the head.

Mar 2: Watch all the best knockouts in Strikeforce featuring such notable names as Le, Gracie and Shamrock. (NBC Sports)

Watch IMPACT WRESTLING every Thursday night at 9/8c on SpikeTV

3+mins of amazing knockouts