Serena Williams turned 41 on Monday, on what is her first birthday as a retired tennis player. Fans wished the American tennis legend well on the occasion, while also noting that she does not like to celebrate birthdays.Williams announced her retirement and played her final match at the 2022 US Open in New York City. However, she did not rule out making a comeback to the sport when asked if she would make a Tom Brady-esque return soon after retiring.Meanwhile, tennis fans took to social media to express their love and admiration for Williams on her birthday."Happy birthday to the woman who brought more power and recognition to women tennis and inspired many more," one fan wrote on Twitter for Serena Williams.Universal Whizkid@quizmasterPG@AustralianOpen @serenawilliams Happy birthday to the woman who brought more power and recognition to women tennis and inspired many more3@AustralianOpen @serenawilliams Happy birthday to the woman who brought more power and recognition to women tennis and inspired many morebubulgn🗽@bubulgnHappy birthday to my Hero twitter.com/australianopen…#AusOpen@AustralianOpenStrong. Powerful. Beautiful.Happy birthday to @serenawilliams 2352202Strong. Powerful. Beautiful.Happy birthday to @serenawilliams 🎊 https://t.co/jNM6O0iTduHappy birthday to my Hero🙏❤️ twitter.com/australianopen…"Happy birthday Queen. There will never be another athlete like you. EVER," anotehr fan expressed.Titirsha🍂@igas_tiramisuHappy birthday Queen .There will never be another athlete like you .EVER. @serenawilliams5Happy birthday Queen .There will never be another athlete like you .EVER. @serenawilliams https://t.co/BcGhkCV9EuHere are a few more reactions from tennis fans on the occasion of Serena Williams' birthday:Peyt@peyday_meI know @serenawilliams doesn’t celebrate birthdays, but I hope she has a great day!I know @serenawilliams doesn’t celebrate birthdays, but I hope she has a great day!ᵒᵛᵉʳ ᵃⁿᵈ ᵒᵘᵗ@_SerenaChelskii know you don’t celebrate birthdays, but happy birthday to my idol, @serenawilliams 🫶🏼22220i know you don’t celebrate birthdays, but happy birthday to my idol, @serenawilliams 🫶🏼🎉 https://t.co/gdb9PEQ6ZG🎀 #AngatBuhay sasha ⎊@sashahawkins15Happy birthday to the Queen 🫶🫶🫶 twitter.com/australianopen…#AusOpen@AustralianOpenStrong. Powerful. Beautiful.Happy birthday to @serenawilliams 1202Strong. Powerful. Beautiful.Happy birthday to @serenawilliams 🎊 https://t.co/jNM6O0iTduHappy birthday to the Queen 🫶🫶🫶 twitter.com/australianopen…sithelo@SithelosenkosiOne thing she’ll do is remind you that she doesn’t celebrate birthdays. 🏾 twitter.com/australianopen…#AusOpen@AustralianOpenStrong. Powerful. Beautiful.Happy birthday to @serenawilliams 2352202Strong. Powerful. Beautiful.Happy birthday to @serenawilliams 🎊 https://t.co/jNM6O0iTduOne thing she’ll do is remind you that she doesn’t celebrate birthdays. 😭✋🏾 twitter.com/australianopen…Dr Drip@athletedripHappy Birthday to the twitter.com/justwsports/st…Just Women’s Sports@justwsports- 73 career singles titles- 23 Grand Slam singles titles- 14 Grand Slam doubles titles- 4 Olympic Gold MedalsHappy birthday to the greatest ever, @serenawilliams. 7412- 73 career singles titles- 23 Grand Slam singles titles- 14 Grand Slam doubles titles- 4 Olympic Gold MedalsHappy birthday to the greatest ever, @serenawilliams. 🎉 https://t.co/ySBmU6S6pkHappy Birthday to the 🐐 twitter.com/justwsports/st…Marry-TV is confused@LittleDodoliOh happy birthday @serenawilliams My 8 yo niece wrote about you for her English assignment about remarkable people twitter.com/TheSwiftSociet…The Swift Society@TheSwiftSociety| Happy birthday to the incredible @SerenaWilliams!One of the greatest tennis players of all time, she said goodbye to the courts this year but left an eternal legacy 1454105🎂| Happy birthday to the incredible @SerenaWilliams!One of the greatest tennis players of all time, she said goodbye to the courts this year but left an eternal legacy 💕 https://t.co/vwPwwYLWJqOh happy birthday @serenawilliams My 8 yo niece wrote about you for her English assignment about remarkable people 👑 twitter.com/TheSwiftSociet…Serena Williams might not celebrate her 41st birthday just like she has not celebrated the day in the past. Williams is a Jehovah's Witness and strictly follows the beliefs of the religion, which includes abstaining from activities like celebrating birthdays. Williams opened up about her beliefs during an interview with Vogue a few years ago."Being a Jehovah’s Witness is important to me, but I’ve never really practiced it and have been wanting to get into it," Williams said on the same.During an interview with People in 2018, Williams revealed that her daughter Olympia also does not celebrate her birthdays."Olympia doesn’t celebrate birthdays. We’re Jehovah’s Witnesses, so we don’t do that," she said.Roger Federer pays tribute to Serena WilliamsWimbledon Championships 2012 Winners BallRoger Federer recently spoke about the legacies of Serena Williams and himself in the world of tennis. Federer's retirement followed shortly after Williams' as the Swiss great played his final match this past weekend at the Laver Cup. Federer recognized that while both him and Williams contributed to tennis in different ways, they both tasted success on tour long after becoming parents."[Serena Williams and I have brought] different things to the sport for sure, and we both did it as mums and dads, you know?" Federer said in a recent interview with Sky Sports. "It's funny to think of it like that because we were both young and made it on tour and we never thought we were going to end as that at the end."Roger Federer's father, Robert Federer, recently revealed that his son was contemplating announcing his own retirement at the US Open, but decided to postpone it in consideration for Williams, who said she would retire at the end of her US Open campaign.