Heavyweight Boxer Posts Video of Knocking Out Sparring Partner; Gets Slammed for It Immediately

Sergey Kuzmin has been slammed for posting a sickening video of him knocking a sparring partner out cold.


The Russian heavyweight uploaded a video of himself brutally knocking out his sparring partner on social media.


He appears to land a devastating right hand which immediately flattens his sparring partner who lies motionless on the canvas before receiving medical attention from a coach.


Kuzmin, meanwhile, walks away to a corner before approaching the stricken boxer.


Needless to say, fans reacted angrily to Kuzmin sharing the video.



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