Mixed Martial Arts is straight up dangerous. Nobody who gets involved in the sport is under the illusion it is anything otherwise.
From Anderson Silva's horrific leg break, to future UFC Hall of Famer Frank Mir's snapped humerus, there have been a host of nasty injuries down the years that have served to remind us that you have to be a special kind of crazy to even step foot inside the ring or octagon.
We can now add the amateur level of Polish MMA fighting to that list after a video, showcasing a truly gruesome arm break, has emerged online. Scroll down to see the horrific footage for yourself...
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The information on this one is pretty limited. All that anyone seems to know is that the incident occurred during an undercard bout between a Maciej Szczepaniak and Dominik Oslizo at the 'HFO Kunlun Elimination 2016 event' in Poland this weekend.
It was Mr. Oslizo who's arm was not-so-subtly rearranged.
You don't have to be a medical expert or a seasoned MMA participant to know that arms should not bend that way...ever.
Osilzo took just milliseconds after impact to point to the problem and learnt pretty quickly that trying to lift his flailing limb from the canvas was a pointless activity.
Even his opponent, after making sure of his victory by landing one post-arm break punch to the face, didn't take long to realise he was seriously hurt.
Tough learning curve
There will be those who will argue the Polish amateur put himself in the position to be seriously hurt by trying to cushion a Harai goshi Judo throw by holding his arm out straight on the canvas. And, while that might be the case, the brutal ramifications of his decision will surely mean he will never try that again.
Hopefully the fighter will be able to return to competitive action in the future, though.
It will likely take a long period of rehabilitation and the ability to blank out the pain he felt in that moment, but, as they say, 'whatever doesn't kill you makes you stronger'.