MMA fans at UFC 285's ceremonial weigh-ins were handed a treat this weekend as Conor McGregor arrived on stage to close out the show. The Irishman revealed that he and the team behind the Road House remake would be filming a scene featuring Jake Gyllenhall.The Hollywood star arrived on stage to a screaming crowd before removing his shirt and stepping onto the scales. The 42-year-old was sporting a seriously impressive physique for his role in the movie, which has left some fans questioning whether or not he's achieved his look naturally.MMA journalist Chamatkar Sandhu shared a photo of Gyllenhaal from the weigh-ins and compared his physique to another one of his roles. The image on the right is from the 2015 movie Southpaw, which saw Jake Gyllenhaal take on the role of a boxer with an equally impressive frame.Chamatkar Sandhu@SandhuMMAJake Gyllenhaal doesn't mess around when it comes to combat sports movies 122963Jake Gyllenhaal doesn't mess around when it comes to combat sports movies 💪 https://t.co/vewpyzPZqlMMA fans have been reacting to images of Gyllenhaal from the weigh-ins, with one fan questioning whether or not the 42-year-old has been using Paulo Costa's infamous 'secret juice':"Jakes on Paulo Cosra's "Secret Juice"Brenda V Sorto@Cigana3@MMAJunkie Jakes on Paulo Costa’s “Secret Juice”🥤🥴1@MMAJunkie Jakes on Paulo Costa’s “Secret Juice”🥤🥴Another fan believes the Hollywood star has used testosterone replacement therapy (TRT), which UFC fighters are only able to use with a medical exemption."Jake's on super trt"JP@jrp_4@MMAJunkie jake’s on super trt3@MMAJunkie jake’s on super trtTwitter user @Allenownz joked that Gyllenhaal's figure was so impressive that he should have taken up Performance Enhancing Drugs (PED) years ago."Jake should've gotten on the sauce long ago dude looks amazing"Allenownz@Allenownz@MMAJunkie Jake should’ve gotten on the sauce long ago dude looks amazing8511@MMAJunkie Jake should’ve gotten on the sauce long ago dude looks amazingCheck out more fan reactions below:Jake Sarrio@jakester1115@MMAJunkie “USADA ain’t testin this motha fucka”- Matt Serra1@MMAJunkie “USADA ain’t testin this motha fucka”- Matt Serra😂C. ❤️‍🔥@belisle_charles@MMAJunkie Definitely should have been rockhold as the antagonist lmfao that dude looks like a UFC 4 create a character1@MMAJunkie Definitely should have been rockhold as the antagonist lmfao that dude looks like a UFC 4 create a characterThunderstorms68@HTownMO68@MMAJunkie Studio-provided HGH must be nice.1@MMAJunkie Studio-provided HGH must be nice.UnbanMentalMisstep@unbanMM@MMAJunkie Jake lookin SAUCY @MMAJunkie Jake lookin SAUCY 😂Joel@JOMMY_1@MMAJunkie Wow, he's got the physique@MMAJunkie Wow, he's got the physiquePhilipBang@philipbang@MMAJunkie 100% natty@MMAJunkie 100% nattyRalphy Vybz@RalphyVybz@MMAJunkie If they ever do a movie about Stephan Bonner jake needs to play him@MMAJunkie If they ever do a movie about Stephan Bonner jake needs to play himShane Goodwin@XShaneGoodwinX@MMAJunkie @MMAJunkie 💉💉💉💉💉💉Thomas Raynott@thomasraynott@MMAJunkie What kind of MMA pro fighter slaps like that?@MMAJunkie What kind of MMA pro fighter slaps like that?fountainmellow@fountainmellow@MMAJunkie he looks ripped. I want to see this movie.@MMAJunkie he looks ripped. I want to see this movie.UFC star Jon Jones names Brock Lesnar as his dream opponent in MMAJon Jones is set to end his three-year hiatus this weekend as he steps into the octagon to face Ciryl Gane at UFC 285. The bout will 'Bones' debut at heavyweight and will also see him competing for the vacant 265lb strap.Whilst Gane has been seriously impressive since making his MMA debut just five years ago, his relatively short career so far has meant that Jones doesn't see their fight as the biggest of his career.In an interview with Karissa Maxwell for The Sporting News, the 35-year-old was asked about his dream MMA match-up. According to Jones, he is still holding out hope for a potential super fight with Brock Lesnar:"I think fighting Brock Lesnar would have been really cool. Brock isn't the most technical guy but he has a massive fanbase. He's a lot bigger than me and it would have been one of those really cool David vs. Goliath situations... I think we both would have done great things for our family and for our team financially that would have been massive... Never say never. Brock, if you're out there."Catch Jones' comments here:Sporting News Fights@sn_fightsEvery fighter has a dream opponent. For @JonnyBones, he told @KarisaMaxwell that it would be cool face Brock Lesnar 31Every fighter has a dream opponent. For @JonnyBones, he told @KarisaMaxwell that it would be cool face Brock Lesnar 👊 https://t.co/LfdWAS3uIu