Rodrigo ‘Kazula’ Vargas has been slammed by fight fans after his disqualification from UFC Fight Night in Rio Rancho, New Mexico.
The Mexican fighter destroyed any hopes of defeating Brok Weaver in their lightweight bout after producing a "disgusting" act of foul play.
Vargas was on top in the fight against Weaver, who was pinned on the ground next to the octagon cage in the opening round.
Despite knowing that kneeing an opponent in the head while they're down is illegal in UFC, Vargas struck the American with a brutal blow regardless.
He then inexplicably followed up the illegal knee with a series of follow-up punches before the referee stepped in to bring an end to the contest.
The controversial incident drew widespread outrage from viewers on social media.
Vargas absolutely crushes Weaver with an illegal knee. The referee immediately pulls Vargas off and calls a stop to the fight. Weaver gets the DQ win #UFCRioRancho— MMAFighting.com (@MMAFighting) February 16, 2020
That was bad. He even followed through with more punches after the illegal knee.— Jim Buemio (@jimbuemio) February 16, 2020
Worst foul I've ever seen— Devin (@dude_mma) February 16, 2020
Take that clowns purse away. That was shocking— JT (@Jpt6392) February 16, 2020
Damn, what was he thinking....— Rui TC (@rui_tc) February 16, 2020
What the hell was that I was rooting for him but are you stupid ?— Gustavo (@llkinggus13ll) February 16, 2020
What a dirty knee by Vargas, wtf man 🤬— Jesse ✝️ (@GoofyIsai) February 16, 2020
Disgusting— mega serf (@theunassailable) February 16, 2020
‘As illegal a knee as I’ve seen’
Former heavyweight champion Daniel Cormier said in commentary that Vargas' actions were "as illegal as it gets".
“That’s as illegal a knee as I’ve seen in a long time," Cormier said.
“I don’t understand what Kazula Vargas was thinking there, throwing that knee.
“It landed illegally, he got knocked out.
“It’s the right decision. He’s flat on his butt, he’s not even up on his knee where you could get confused.
“It’s the right call.”
The disqualification to Vargas handed Weaver his first win in the UFC, however, the American looked sheepish after his hand was raised in the post-fight ceremony.
“A win like that, it ain’t no win in my book,” Weaver said in a post-fight interview.
“In my book, he TKOd me. So, I lost tonight. I just got paid good.”