One of the biggest MMA deals in recent times took place last month when former UFC Flyweight Champion Demetrious Johnson was traded to ONE Championship in exchange for Ben Askren.
However, the move hasn't gone down well with a lot of people, and MMA fans may be surprised to find out that one of those people is Conor McGregor.
The former UFC Featherweight and Lightweight Champion fired at ONE Championship CEO Chatri Sityodtong over the dismantling of the UFC’s 125-pound division, asking him to sign the fighters looking for a new promotion.
He said in a tweet: "You must now take all the 125lbers that have been let go, Chatri.
You talk all of this Martial Art and respect talk, yet your greed has directly cost more than half a fighting division it’s chance to earn income for their family. Have respect @YODCHATRI. Sign the division."
This tweet itself, however, hasn't gone down well with some of his fellow UFC fighters, and several fighters tweeted their anger at Notorious.
According to MMA Fighting, one of those people was current UFC Flyweight Champion Henry Cejudo who, in a now deleted tweet, said to McGregor:
"Don’t worry about the flyweight division Conor. You should worry about your wrestling and grappling skills and your spirit!"
Askren and Patricio Freire also fired back at the Irishman. The man who was part of the trade between UFC and ONE completely owned McGregor in one of his tweets too, comparing him to Mighty Mouse.
There is strong evidence though that the UFC could be dismantling their Flyweight division very soon, potentially by the end of the year, although this is yet to be confirmed by any UFC official.
Cejudo won the UFC Flyweight title by beating Johnson at UFC 227 via split decision, a win that snapped Mighty Mouse's record for most consecutive title defenses. The Messenger hasn't fought since this bout.
McGregor last competed for UFC at UFC 229 last month, where he lost to Khabib Nurmagomedov via fourth-round submission finish in a lightweight title bout. It's unclear as to when he will fight next.