Federer retired from tennis in 2022 with 20 Grand Slam singles titles to his name.

Murray, a winner of three Slams, then called time on his career in August earlier this year.

And now Nadal – who faced Djokovic in 28 finals between 2007 and 2021 – has confirmed that he will stop playing later this year.

Djokovic and Nadal have faced off 60 times during their careers, although they have only played against each other six times this decade, with the Spaniard no longer one of the top-ranked stars.

After beating Jakub Mensik on Friday to reach the semi-finals of the Shanghai Masters, world No 4 Djokovic was questioned about Nadal during his post-match interview.

Asked what he made of Nadal’s decision to call it a day, 24-time Grand Slam champion Djokovic replied: ‘Well, I posted. You saw it on Instagram. I meant every word.

‘He’s been my greatest rival. The rivalry I had with him has impacted me the most in my career by far. We knew that the moment was coming sooner than later. But it’s still a shock.

‘When it came officially, also for Roger a few years ago when he announced retirement… Andy as well this year… it’s a bit overwhelming for me to be honest.

‘I don’t know what to make of it. I still enjoy competing. But part of me left with them… a big part of me.

‘It’s tough news for the tennis world and sports world. Rafa has been an inspiration for tons of children around the world.’

Djokovic had earlier paid tribute to Nadal in a 138-word statement on Instagram.

It read: ‘Rafa, one post is not enough to express the respect I have for you and what you have done for our sport.

‘You have inspired millions of children to start playing tennis and I think that’s probably greatest achievement anyone can wish for.

‘Your tenacity, dedication, fighting spirit is going to be taught for decades. Your legacy will live forever.

‘Only you know what you had to endure to become an icon of tennis and sport in general.

‘Thank you for pushing me to the very limit so many times in our rivalry that has impacted me the most as a player.

‘Your passion for representing Spain has always been remarkable. I wish you best possible farewell in Malaga with Davis Cup team of Spain. I will be there in person to pay respect to your stellar career’.