Whenever an Anthony Joshua fight night rolls around, there will no doubt be an array of sporting superstars ringside.
Saturday's fight with Robert Helenius was no different and one of those in attendance was UFC superstar Conor McGregor.
While the 35-year-old has been spotted at a number of boxing events including the undisputed women's super lightweight clash between Chantelle Cameron and Katie Taylor, fans are eagerly awaiting to see when he will make a return to the Octagon.
McGregor's last appearance in the UFC was two years ago when he fought Dustin Poirier for a third time, but this was a fight which he would lose by technical knockout in round one after picking up a leg injury.
Now a return is on the cards with Michael Chandler set to be the opponent after the pair went head-to-head on the latest series of The Ultimate Fighter.
However, while December was looking likely for this fight, there is some doubt due to McGregor not enrolling in USADA testing, a UFC fighter is required undertake at least six months of testing before returning to competition after a layoff, but when speaking to talkSPORT, the Irishman claims a fight with Chandler later this year will happen.
"December – [Michael] Chandler, I have to do it,” McGregor stated.
“I’ve just got to grab him by the chest [and smack him]. That’s what I’ve got to do.
"Chandler next in December and then [Justin] Gaethje, BMF and then we’ll do the Nate [Diaz] trilogy."
There is a chance McGregor could be given an exemption from USADA testing, but this has only happened once when Brock Lesnar was given permission to compete at UFC 200.