The fact that Alex Pereira was promoted to the rank of brown belt in Brazilian jiu-jitsu makes Khamzat Chimaev chuckle (BJJ). The Swedish fighter, who was born in Chechnya, was not thrilled with Pereira's win against Israel Adesanya at UFC 280, and he has since taken to social media to criticize him for his performance.

Alex Pereira just obtained his brown belt in Brazilian Jiu-Jitsu from one of his trainers, Plinio Cruz, and the news was first reported by MMA writer Ariel Helwani.

However, Khamzat Chimaev did not seem to be pleased by the wrestling abilities that the Brazilian put on exhibit against Adesanya, as evidenced by the fact that he retweeted the photo with emojis of him laughing and face-palming.

Although 'Poatan' did most of his fighting with Adesanya standing up, there were a few occasions when the two battled on the ground together. "The Last Stylebender" even managed to maintain control over Pereira for the duration of the third round, leaving an outstanding grappler like Chimaev yearning for a fight against the middleweight champion.

Chimaev has been quite public about his desire to compete against the champion, so it is not the first time that "Borz" has taken shots at "Poatan." The Chechen-born Swede has continued to challenge Pereira to a battle in a series of tweets that he has placed on his account. He has even offered to fight Pereira on his home turf in Brazil.

If this fight were to happen, who do you think would be the victor? Will his new rank of BJJ brown belt prove his grappling skills against this tough opponent?

Only time will tell. As for now, Chimaev continues to challenge Pereira and prove that he is a serious contender for the title of middleweight champion. Only time will tell who will be crowned the victor in this match-up. Until then, we can only wait and see.