ATP Tour stars, coaches, former players and other sports stars reacted with sadness and words of encouragement to the news that Andy Murray could be playing his final tournament at the Australian Open, which starts Monday. The Scot said during a news conference on Friday that the pain in his right hip has become too much for him to endure, and that he plans to retire after Wimbledon, if not sooner.

ATPTour.com compiled the best of social media's reaction to the news:

Congrats @andy_murray for all your achievements all these years. It was great to play against you all these years. Good luck with everything! https://t.co/BaOsYZ5KTo

— Rafa Nadal (@RafaelNadal) January 11, 2019

.@andy_murray is a great champion who I have the utmost admiration for.
I’ve enjoyed following his stellar career, he is truly one of the greats of our game & a lovely bloke! Arise Sir Andy. I applaud you & wish you well in all your future endeavours.
Rocket

— Rod Laver (@rodlaver) January 11, 2019

😥😥 https://t.co/DacHr9mcCC

— Stanislas Wawrinka (@stanwawrinka) January 11, 2019

Andy, just watched your conference. Please don’t stop trying. Keep fighting. I can imagine your pain and sadness. I hope you can overcome this. You deserve to retire on your own terms, whenever that happens. We love you @andy_murray and we want to see you happy and doing well. 🙏

— Juan M. del Potro (@delpotrojuan) January 11, 2019

Tennis will come to an end for us all but the friendships will last a lifetime. What you’ve done for the sport will live on forever. I’m hoping for a strong and healthy finish for you, my friend! @andy_murray pic.twitter.com/Bcs0cdllJp

— Grigor Dimitrov (@GrigorDimitrov) January 11, 2019

If this is true, I tip my cap to @andy_murray ! Absolute legend. Short list of best tacticians in history. Unreal results in a brutal era ...... Nothing but respect here. I hope he can finish strong and healthy https://t.co/FZbwmvRC2r

— andyroddick (@andyroddick) January 11, 2019

@andy_murray Legend!

— Dirk Nowitzki (@swish41) January 11, 2019

The @andy_murray that I know will absolutely make it to Wimbledon to play his final tournament. Not many with more heart, effort in the history of the game. Was always a pleasure to share the court pal.

— Mardy Fish (@MardyFish) January 11, 2019

You’re the man muzz🙏🏼🙏🏼

— Thanasi Kokkinakis (@TKokkinakis) January 11, 2019

Really sad to hear that @andy_murray 😢You are a true champion of our sport and great example for all of us!Stay strong 🙏🏻 https://t.co/Bw8ZIF0QUM

— Karen Khachanov (@karenkhachanov) January 11, 2019

My thoughts are with @andy_murray and I really hope we continue to see you fighting on court so you can retire on your own terms. Get well soon... Tennis is better with you. pic.twitter.com/0z1401hKXe

— Kevin Anderson (@KAndersonATP) January 11, 2019

So sad for @andy_murray . Hands down one of the best guys on tour. So much respect for him as an all around athlete and person. Hope his body can recover. If not, he will be missed by all. 😔

— Vasek Pospisil (@VasekPospisil) January 11, 2019

Nobody has done more for British tennis than you and it looks like nobody will for many years to come. You have been an inspiration, friend and role model to me from the get go and I thank you for everything. Hope to see you out there for as long as possible @andy_murray 🎾 pic.twitter.com/xkxUXf1lOb

— Kyle Edmund (@kyle8edmund) January 11, 2019

Woke up to the sad news from @andy_murray 😔 True champion and an amazing fighter with a huge heart. One of the most professional guys that I have ever met. My biggest respect!

— Jonas Bjorkman (@BjorkmanTennis) January 11, 2019

When you search for examples of “emptied the bucket to be as good as they could be” there should be a picture of Andy Murray sitting under that quote. Remarkable discipline for training, competition, sacrifice, perfection, a little crazy 😃 but a legend of a bloke. Bravo Andy 👏

— Darren Cahill (@darren_cahill) January 11, 2019

Whatever you think “emptying the bucket” means....times that by 5 and that’s who @andy_murray is. Thank you Andy - thank you for always being you. #1 https://t.co/0jQgFI5EkA

— Daniel Vallverdu (@danielvallverdu) January 11, 2019

Andy will always be a titan of our sport. A hero of mine throughout my career. A true warrior whenever he steps on the court. https://t.co/Ka6fq5jy4B

— John Millman (@johnhmillman) January 11, 2019

That wasn’t the easiest day I’ve ever had...#melbourne

— jamie delgado (@DelgadoJamie) January 11, 2019

Andy Murray is our best British tennis player in the Open era. He is one of the best athletes, tactician & competitor to grace our sport.He should be so proud of his incredible career . 3 GS🏆, 1 DavisCup winner,2 Olympic Golds 🥇, Year end World no.1 , 45 titles!👏🏻 👏🏻👏🏻

— Greg Rusedski (@GregRusedski1) January 11, 2019

.@andy_murray You are a champion on and off the court. So sorry you cannot retire on your own terms, but remember to look to the future. Your greatest impact on the world may be yet to come. Your voice for equality will inspire future generations. Much love to you & your family. https://t.co/AQUOP3LGec

— Billie Jean King (@BillieJeanKing) January 11, 2019

Always sad when a sporting career comes to an end. Sadder still when it’s one of the greatest sportsmen that these islands has ever produced. Wish @andy_murray all the very best. A truly wonderful tennis player, and an absolute credit to his sport. Well played, Sir. 👋👋 https://t.co/z0td9c4Q3Y

— Gary Lineker (@GaryLineker) January 11, 2019

What a career @andy_murray keep it going as everybody wants to watch you @Wimbledon in July mate. #🇬🇧GOAT

–– 3x Grand Slams
–– 2x Olympic gold medals
–– ATP Finals
–– 2016 world No.1
–– 14x Masters 1000 titles
–– 8x Grand Slam finals
–– 45 total ATP titles

Legend 🏆🏅🇬🇧 pic.twitter.com/CYphhRvUcC

— Justin Rose (@JustinRose99) January 11, 2019