Conor McGregor's return to the UFC octagon will likely have to wait. 

MMA journalist Ariel Helwani reported that the fight between McGregor and Michael Chandler at UFC 303 being called off would be "a formality at this point."

"It’s not 100% off but I’d be extremely surprised at this point if it remains and they are actively negotiating with multiple camps to find a replacement," Helwani posted on X. "It’s all up in the air still but they are proceeding at this time like they need a replacement."

CLICK HERE FOR MORE SPORTS COVERAGE ON foxnews.1eye.us

Conor McGregor in Riyadh

Conor McGregor looks on prior to the heavyweight fight between Tyson Fury and Francis Ngannou at Boulevard Hall in Riyadh, Saudi Arabia, on Oct. 28, 2023. (Justin Setterfield/Getty Images)

The issue is the 35-year-old McGregor, who hinted at a possible injury on his Instagram Story on Wednesday night. 

The Story was an old clip where he was discussing injuries in UFC, which included sad-face and praying hands emojis. 

CONOR MCGREGOR CALLS FOR LIFETIME BAN OF RYAN GARCIA AFTER REPORTED POSITIVE DRUG TEST FOLLOWING VICTORY

Rumors were also circulating after the cancellation of a Dublin press conference on June 3, which the UFC gave no reason for just hours before it was supposed to happen. 

It’s unclear when McGregor may have suffered an injury, as he was recently seen dancing with his fiancée in Ireland and appeared healthy at the time. 

Conor McGregor before the Poirier fight

Conor McGregor prepares to fight Dustin Poirier during the UFC 264 event at T-Mobile Arena in Las Vegas  on July 10, 2021. (Chris Unger/Zuffa LLC)

McGregor’s return to the Octagon is something the UFC world has been waiting for, as he was last seen in July 2021 fighting Dustin Poirier. He broke his shin during the fight, and he hasn’t returned in three years. 

Whether UFC CEO Dana White can find a main event replacement, if McGregor officially can’t go, is up in the air. Some have mentioned Max Holloway, but he’s been in Japan, according to his social media. 

It’s a quick turnaround — UFC 303 is in two weeks — so finding a replacement is going to be tough. Plus, McGregor’s return was the large pull for this card, so there won’t be the same draw if a replacement is found. 

Conor McGregor claps

Conor McGregor poses inside the ring at the O2 Arena in London on Aug. 12, 2023. (Nick Potts/PA Images via Getty Images)

CLICK HERE TO GET THE FOX NEWS APP

McGregor, despite all his business ventures outside the octagon, still wants to fight. But it doesn’t look like the hiatus is ending soon.  

Follow Fox News Digital’s sports coverage on X, and subscribe to the Fox News Sports Huddle newsletter.