Boxer Deontay Wilder demolishes Internet troll in and out of the ring (VIDEO)

Sometimes justice is best served inside the ring — and maybe even better outside of it. 

That's what happened when undefeated heavyweight boxer Deontay Wilder (31-0, 31 KOs) smacked the hell out of a real life Internet troll who had been harassing him for years.

According to TMZ Sports, the guy who got the beatdown is Charlie Zelenoff — a wannabe fighter with a couple of kickboxing matches — who's been trolling Wilder for years with harassing phone calls and deeply personal jabs on social media. 

The Bronze Bomber claims Zellenoff has not only hurled racial slurs at him — but also made disparaging comments about his young daughter, who was diagnosed with spina bifida, reports the gossip site.

TMZ said:

Zelenoff had recently challenged Wilder to fight him at a boxing gym in L.A. — and Wilder, deciding enough was enough, met him at the Hollywood Boxing Gym late Wednesday night. 

Wilder tried to fight Zelenoff in the ring — but CZ threw a cheap shot and ran for the door. 

When he finally returned, the squared off on the main floor of the gym — and what ensued was justice in action. 

When Zelenoff picked himself up off the floor, a furious Wilder told him, "Don't you ever call me a n**ger again. Don't you ever say you're going to tape my daughter." 

Here's the one-sided action:

 




Even after Zelenoff escaped through the ropes and ran from the building ... twice ... he said, "I'm the best. I'm still the best."