'I will be behind you' – Nick Kyrgios's emotional tribute to Andy Murray

paid a great and emotional tribute to , who announced his retirement from tennis. Through a Facebook post, the Australian player, who has been getting along well with the Brit for years, wrote: Andy, I know you take me for a joker most of the time, but at least hear me out on this one old friend.

You will always be someone that impacted the sport in so many different ways, I know this was never the way you wanted to go out, but hey it was a heck of a ride. You took me under your wing as soon as I got on tour, and to this day you have been someone I literally just look forward to seeing.

You are one crazy tennis player, miles better than me, but I just want you to know that today isnt only a sad day for you and your team, its a sad day for the sport and for everyone youve had an impact on.

Which leaves me big fella.. these are a couple photos, that should make you smile and think, I was actually a little bit of a younger brother to you. Anyways, I just want you to know, and Im sure you already do, everyone wants you to keep fighting and to keep being you.

Goodluck at the Australian Open muzz, Ill be behind you. : Andy, just watched your conference. Please dont 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. ALSO READ: Rafael Nadal: Worse players than David Ferrer won a Grand Slam title