Roxanne Modafferi hung up her gloves following the split decision (28-29 x2 and 29-28) loss to Casey O'Neill at UFC 271 in Houston, Texas, on Saturday night.Modafferi lost to Nicco Montano in the inaugural UFC women's flyweight championship encounter back in December 2017. 'The Happy Warrior' holds a 25-20 win-loss record in her 18-year professional MMA career.Many renowned faces paid tribute to 'The Happy Warrior' on social media. Former UFC middleweight champion Chris Weidman was quick to share his thoughts on the retirement. Modafferi's former opponent and WWE superstar Shayna Baszler also reacted to the loss.See how several MMA fighters, journalists and fans reacted to Roxanne Modafferi's retirement on Twitter below:Chris Weidman@chrisweidmanCongrats to @Roxyfighter on retirement. Pioneer of the sport and one of my favorite fighters to watch because you could never count her out and always showed so much heart ! 8:44 AM · Feb 13, 20221577Congrats to @Roxyfighter on retirement. Pioneer of the sport and one of my favorite fighters to watch because you could never count her out and always showed so much heart ! 🎉#OnAmission4Gold@KelvinGastelumAll the best to you The Happy Warrior @Roxyfighter twitter.com/ufc/status/149…UFC@ufcThank you, Roxy [ @RoxyFighter | #UFC271 ]8:11 AM · Feb 13, 20221438Thank you, Roxy 👊[ @RoxyFighter | #UFC271 ] https://t.co/JjOGtb3D2sAll the best to you The Happy Warrior @Roxyfighter 🙏👊😀 twitter.com/ufc/status/149…Toyota Center@ToyotaCenterCongrats on a great career, @Roxyfighter!8:31 AM · Feb 13, 20226Congrats on a great career, @Roxyfighter! https://t.co/MUjEpb80RUShayna Baszler@QoSBaszlerFeeling nostalgic tonight. The last of a forgotten generation of women’s MMA fighters. Lucky to have shared a ring, & a friendship. Into the sunset, @Roxyfighter #UFC2717:07 AM · Feb 13, 202274289Feeling nostalgic tonight. The last of a forgotten generation of women’s MMA fighters. Lucky to have shared a ring, & a friendship. Into the sunset, @Roxyfighter #UFC271 https://t.co/Wanm4GBEl8Angela Hill@AngieOverkillBrilliant final fight by @Roxyfighter, pushed the pace and brought out the best we’ve seen yet in King Casey. Part of me feels like she could’ve dragged it to the ground whenever she wanted but Roxy wanted a war. Great effort by the prospect and retiree. #UFC2718:11 AM · Feb 13, 202224823Brilliant final fight by @Roxyfighter, pushed the pace and brought out the best we’ve seen yet in King Casey. Part of me feels like she could’ve dragged it to the ground whenever she wanted but Roxy wanted a war. Great effort by the prospect and retiree. #UFC271Jessy Jess@missjessyjessThank you for being you @Roxyfighter This sport was better for having you in it. You will be missed #ufc2718:04 AM · Feb 13, 202255751Thank you for being you @Roxyfighter This sport was better for having you in it. You will be missed #ufc271 https://t.co/QQpVVNo487John Wood@bigwoodmmaCongrats @Roxyfighter on amazing career! I’m so thankful to have been on this awesome/crazy journey with you and I truly believe I wouldn’t be where I’m at in my career without you! You’ve taught me how to be a better coach and a better person.Love ya Hox #UFC2719:19 AM · Feb 13, 202217Congrats @Roxyfighter on amazing career! I’m so thankful to have been on this awesome/crazy journey with you and I truly believe I wouldn’t be where I’m at in my career without you! You’ve taught me how to be a better coach and a better person.Love ya Hox #UFC271 https://t.co/yHvpVQZZ5YMarc Raimondi@marc_raimondiThere will never be another Roxanne Modafferi. Happy trails, Happy Warrior. #UFC2718:22 AM · Feb 13, 202235633There will never be another Roxanne Modafferi. Happy trails, Happy Warrior. #UFC271 https://t.co/zkSotZlZVcModafferi has suffered defeats in her last three UFC fights. She lost to Viviane Araujo and Taila Santos last year before falling to O'Neill. Her last victory inside the octagon came against Andrea Lee in September 2020.'The Happy Warrior' has fought in multiple divisions throughout her career, from flyweight to even middleweight. She even participated in The Ultimate Fighter 18 and 26. She's unsuccessfully challenged for titles at Strikeforce and Invicta FC promotions before her UFC days.Andrei Arlovski follows Roxanne Modafferi with a splendid performance at the UFC 271Former UFC heavyweight champion Andrei Arlovski had a different outcome in his fight compared to Modafferi.The 43-year-old overcame Jared Vanderaa via split decision (29-28 x2 and 28-29) to rack up his fifth win in six fights. The former champion improved to a 33-20-2 win-loss-no contest record in the process.Arlovski has now tied 'Cowboy' Donald Cerrone for the second-most fights contested in UFC history with 37. He is just one bout behind record-holder Jim Miller.'The Pitbull' is also tied with Demian Maia and Miller for the most victories in the world's biggest MMA promotion at 22. Cerrone, with 23 triumphs inside the octagon, is the topper on this list.Here's how the MMA world reacted on social media after Andrei Arlovski's UFC 271 preliminary card win on Saturday:Shaheen Al-Shatti@shaunalshattiAndrei Arlovski having won 5 of his last 6 fights at age 43, literally 22 years after his UFC debut, has to be one of the more impressive feats I've ever seen. #UFC2718:46 AM · Feb 13, 202266063Andrei Arlovski having won 5 of his last 6 fights at age 43, literally 22 years after his UFC debut, has to be one of the more impressive feats I've ever seen. #UFC271Alan Jouban@AlanJoubanArlovski still bringing in the wind at 43! Pretty incredible!8:52 AM · Feb 13, 2022132Arlovski still bringing in the wind at 43! Pretty incredible!Adam Martin@MMAdamMartinI definitely thought Arlovski was done when Sergei Kharitonov KOed him in Strikeforce. Unreal what he has done in the decade since. #UFC2718:12 AM · Feb 13, 2022141I definitely thought Arlovski was done when Sergei Kharitonov KOed him in Strikeforce. Unreal what he has done in the decade since. #UFC271MacMally🍀@MacMallyMMAMost professional athletes at age 43 take up golfing. 4 decade and a 1/3rd old Andrei Arlovski is still out here fighting in a cage in the elite organization. He's like the Tom Brady of MMA with less rings. #UFC2718:29 AM · Feb 13, 20222569Most professional athletes at age 43 take up golfing. 4 decade and a 1/3rd old Andrei Arlovski is still out here fighting in a cage in the elite organization. He's like the Tom Brady of MMA with less rings. #UFC271Luke Thomas@lthomasnewsIt isn't just Arlovski's stylistic reinvention. That's impressive, but his fire to compete at age 43 is crazy. In it's own way, it's a form of stamina. He's not surfing off of his name. He's doing the work. Fighting is a young man's sport, but he's holding a pace that works.8:24 AM · Feb 13, 202215614It isn't just Arlovski's stylistic reinvention. That's impressive, but his fire to compete at age 43 is crazy. In it's own way, it's a form of stamina. He's not surfing off of his name. He's doing the work. Fighting is a young man's sport, but he's holding a pace that works.Mike Bohn@MikeBohnMMAAndrei Arlovski wins at #UFC271 and moves into a tie for the second-most victories in UFC history!8:32 AM · Feb 13, 20229212Andrei Arlovski wins at #UFC271 and moves into a tie for the second-most victories in UFC history! https://t.co/dP2XMfadDwWeasle@ThaWeasleAndrei Arlovski's career is so inspiring. The guy is 43 years old, made huge career comebacks, and still competing well against these young fighters. Definitely deserves to be in the Hall of Fame #UFC2718:36 AM · Feb 13, 202216510Andrei Arlovski's career is so inspiring. The guy is 43 years old, made huge career comebacks, and still competing well against these young fighters. Definitely deserves to be in the Hall of Fame #UFC271