Justin Gaethje has claimed that he has little desire to fight Conor McGregor, after the Irishman called him out in the aftermath of UFC 291. Gaethje avenged a 2018 loss to Dustin Poirier on Saturday, knocking out his fellow American with a stunning head kick to win the ‘Baddest Motherf*****’ title. And McGregor, as he so often does after major UFC cards, then took to social media to call out one half of the main-event fight. “I’ll slap you around,” tweeted McGregor, 35. “I KO him one shot. Guarantee it.” At the UFC 291 post-fight press conference, Gaethje was asked about the former UFC champion’s comments. The lightweight, 34, replied: “I think he’s turned me down six times. And usually you have to lose to fight him, so don’t know what’s going on. “I don’t know, I don’t really care. Whatever. I fight MMA, I like to fight big fights, I like exciting things, so it sounds pretty exciting to me. [But] I’m not going to fight someone on steroids.” Gaethje was addressing the fact that McGregor, who has never tested positive for a performance-enhancing drug, is currently absent from the United States Anti-Doping Agency (Usada) testing pool. McGregor is set to fight Michael Chandler next, but the Irishman must first spend six months in Usada’s testing pool and return two negative tests – and zero positives. As such, McGregor vs Chandler is still without a date and location. Gaethje added: “I’ve never taken steroids in my life, never will. Well, maybe when I retire, I might... but I’ve never taken steroids, and I don’t want to fight someone that’s cheating. And I probably shouldn’t even say that if I want the fight, but it’s the truth.” McGregor vs Gaethje is a fight that many fans have long wanted to see. Meanwhile, McGregor has fought Poirier three times. McGregor knocked out the 34-year-old in a featherweight bout in 2014, before suffering a KO loss to Poirier in January 2021 at lightweight. In their trilogy fight in July 2021 – also contested at lightweight – McGregor suffered a broken leg at the end of Round 1. Click here to subscribe to The Independent’s Sport YouTube channel for all the latest sports videos. Read More Justin Gaethje stuns Dustin Poirier with brutal head-kick knockout at UFC 291 Jake Paul vs Nate Diaz live stream: How to watch fight online and on TV this weekend Next UFC Fight Night: Event start time, card and how to watch