The knockout is a blow that makes an opponent fall to the ground and be unable to to get up, so that he looses fight. But what if two boxers hit each other in the same moment? Man cannot say who is the winner. Just like referees… These are really incredible situations. First video is tai-boxing fight between Ben Smullen from Australia and Kaichon Sor Vorapin from Thailand. This double-knockout is really surprising…

Second fight is from the May 2005. Sechew “Iron Horse” Powell was fighting hand-to-hand with Cornelius “K9” Bundrage. Powell was undefeated.

Another amazing double knockout from MMA (Mixed Martial Arts)…

Next video is also spectacular. These kind of situations do not happen very often. It was a fight between Shaun Tyler and Brian Parker.

And last, but not least, extremely funny video. One of the fighters hurt his opponent and then…hurt himself by accident…