Mark Zuckerberg and his wife Priscilla Chan were in attendance at UFC Vegas 61. The closed-door event was headlined by a women's strawweight clash between Mackenzie Dern and Yan Xiaonan.The co-founder and CEO of Meta Platforms took to Instagram to post a picture of himself and his wife along with Dern backstage. View this post on Instagram Instagram PostWhile Zuckerberg thoroughly enjoyed the fights, which were evident from his reactions, Chan had a hard time dealing with the violence. Bantamweight fighters Raoni Barcelos and Trevin Jones battled it out for three rounds in a high-paced fight on the main card.During the final round of the fight, Barcelos pressured Jones against the octagon with a barrage of punches. The American, however, secured a body lock in an attempt to slow down Barcelos. After Barcelos attempted a spinning elbow, Jones ducked down to secure a takedown.The sequence drew quite a reaction from Priscilla Chan, who was caught on camera looking away in shock.Watch Priscilla Chan look away in shock as Raoni Barcelos gets taken down by Trevin Jones:Barstool Sports@barstoolsportsZuckerberg’s wife is absolutely in shock that two UFC fighters are punching each other @SpinninBackfist2885180Zuckerberg’s wife is absolutely in shock that two UFC fighters are punching each other @SpinninBackfist https://t.co/ouX619yAeKFans react to Mark Zuckerberg's wife Priscilla Chan having a hard time dealing with violence at UFC Vegas 61It was reported and confirmed ahead of UFC Vegas 61 that the event will be closed to the media and fans. While UFC president Dana White claimed that he wanted to give the media a well-deserved day off, the MMA community started speculating on the actual reason for the decision.Mackenzie Dern, who headlined the event alongside Yan Xiaonan, claimed that Mark Zuckerberg rented out the whole event for his friends and family. The rumors were dismissed by White later via a tweet.Check out Dana White's tweet below:danawhite@danawhiteMark Zuckerberg did NOT rent out the UFC Apex. That’s total bullshit. twitter.com/MMARoasted/sta…2642236Mark Zuckerberg did NOT rent out the UFC Apex. That’s total bullshit. twitter.com/MMARoasted/sta…However, Zuckerberg was in attendance alongside his wife Chan at the event. MMA fans were amused by Chan's reaction to previously mentioned exchange and hopped on to the comments section with hilarious replies. @kaiesha_brown wrote:"This is realest thing she’s seen in awhile."B.J.K.B ♓️ 🥋@kaiesha_brown@barstoolsports @SpinninBackfist This is realest thing she’s seen in awhile.37@barstoolsports @SpinninBackfist This is realest thing she’s seen in awhile.Another fan claimed that Priscilla Chan was clueless about the sport when she agreed to attend the event live:"She clearly had no idea what UFC was when she agreed to come along."Yet another fan reacted:Spinnin Backfist@SpinninBackfist@barstoolsports Zuck’s wife tomorrow2534@barstoolsports Zuck’s wife tomorrow https://t.co/Ul1LxluWYMCheck out some of the best reactions below:Anthony Cogo@T_Cogo@barstoolsports @SpinninBackfist Boy, good thing they didn't let in any of the filthy poors who actually enjoy this. She might have even touched one of the dirty plebs.2@barstoolsports @SpinninBackfist Boy, good thing they didn't let in any of the filthy poors who actually enjoy this. She might have even touched one of the dirty plebs.Rebecca Downs@RebeccaRoseGold@barstoolsports @SpinninBackfist Lol wow4@barstoolsports @SpinninBackfist Lol wowMichael Steinhauser@m_stein42@barstoolsports @SpinninBackfist Me trying to show my mom UFC highlights@barstoolsports @SpinninBackfist Me trying to show my mom UFC highlightsToski@thedreamkilled@barstoolsports @SpinninBackfist@barstoolsports @SpinninBackfist https://t.co/Iptn1jev6bDub@ya_dubb@barstoolsports @SpinninBackfist I see she's the human in the relationship@barstoolsports @SpinninBackfist I see she's the human in the relationship