Accidental double headbutt KO takes place in Poland (Video)

I’m sure this is already being queued to post on Failblog if it hasn’t already been posted. Here’s yet another problem with grappler versus grappler. Both men look to shoot in when they collide craniums and crumble. Marcin Mencel vs. Mateusz Zawadzki has just became a classic, but probably not in the way they envisioned being remembered.

There’s of course been many other foul-ups in the form of double-knockouts in the past in MMA. Here’s one of them if you’re looking for more.

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