Andy Murray has conceded he is just one major injury from being forced to retire, though the three-time grand slam winner remains keen to play on.
Murray underwent two hip surgeries in 2018 and 2019, causing him to spend much of the last four years on the sidelines.
However, Murray returned to the top 50 of the world rankings after making two tour-level finals in 2022, while his run to the third round of the US Open represented his joint-best grand slam campaign since Wimbledon 2017.
The two-time Wimbledon champion saw rival Roger Federer retire from the sport in September after struggling with a knee injury, and while he acknowledges fitness concerns could force his hand, Murray is not yet looking to follow suit.
"If my body is in good shape and I'm still able to compete consistently, I'll keep playing," Murray said.
"But I can't look so far in advance with the age I'm at and with the issues I've had. If I was to have a big injury, I probably wouldn't try to come back from that."
Murray has been training with coach Ivan Lendl in a bid to ensure he enters next month's Australian Open in peak condition, having missed three of the last five editions of the tournament.
"I spent three weeks in Florida, getting my body right and getting some work done on my game and it went really well," he said.
"I'm certainly in better shape than I was. A lot of work was done in the gym, trying to build up my endurance and my stamina a bit and I'm hoping that's going to help me next year.
"I wasn't happy with how last season went – certainly the last six months or so from a physical perspective – but my ranking still went from 125 to 50 in a year.
"I'm hoping that this year, with the work I've done, things will continue to improve and I'll still be motivated to get out there and compete."
Gauff rallies back against Starodubtseva to reach China Open semi-final
Coco Gauff came from behind to defeat Yuliia Starodubtseva and reach the semi-finals of the China Open.
Gauff was no match for the qualifier in the first set of Thursday's tie, but the American rallied back to win 2-6 6-2 6-2.
The world number six will face Paula Badosa, the 15th seed, on Saturday.
She is vying for a place in her first final since she triumphed in Auckland in January, and her first at a WTA 1000 event since she won the Cincinnati Open in 2023.
Data Debrief: Comeback queen
Including retirements, Gauff (two) has achieved multiple match wins from a set down at a single WTA 1000 event for the first time in her career, and for the first time at a single WTA event overall since last year's US Open.
Since the format's inception in 2009, meanwhile, only Caroline Wozniacki (eight) has reached more WTA 1000 semi-finals than Coco Gauff (seven) before turning 21. World number one Iga Swiatek (five) is the only other player to reach 5+ semi-finals over that span.
Badosa stands between Gauff and the final. She beat home hope Zhang Shuai in the quarters, and became the second Spaniard to reach the semi-finals of the China Open since the inception of the tournament in 2004 after Garbine Muguruza in 2015.
She is the second oldest player to reach the semi-finals of the China Open in their maiden appearance after Amelie Mauresmo in 2006.
Alcaraz lauds 'beast' Sinner after winning China Open classic
Carlos Alcaraz described Jannik Sinner as "a beast" and the world's best player after downing the Italian in Wednesday's remarkable China Open final.
Alcaraz and Sinner battled it out for over three hours in the Beijing showpiece match, with Alcaraz eventually triumphing 6-7 (6-8) 6-4 7-6 (7-3).
The Spaniard took the decisive tie-break with a remarkable run of seven straight points, having lost a tie-break in the opening set to fall behind.
At the age of 21 years and 150 days, Alcaraz is the youngest player to defeat the world number one in an ATP event final after losing the opening set since Juan Martin del Potro (20 years, 356 days), who came back to beat Roger Federer at the US Open in 2009.
Speaking after his sixth career win over the Italian (four defeats), Alcaraz outlined his belief he had overcome the very best in the sport.
"He could have won in two, I could have won in two, he could have won in three. It was a really close match," said Alcaraz.
"Jannik, once again, he showed that he's the best player in the world, at least for me.
"The level that he's playing, it's unbelievable. It's a really high quality of tennis. His shots, physically, mentally... he's a beast."
Sinner breezed into a 3-0 lead in the third-set tie-break, only for Alcaraz to show extraordinary resilience to maintain his 100% record against Sinner this year, having previously beaten him at Indian Wells and Roland Garros.
"I never lost hope. Honestly I knew that every tie-break Jannik plays is almost on his side," Alcaraz said of the decider.
"I thought that in the third set, I'm not going to lie down after two mini-breaks for him. I thought, 'okay, I have to give everything that I have just to try to give myself the opportunity to be close'.
"During the whole week I've been playing great tennis. Probably sometimes the luck went to my side a little bit in the matches."
Alcaraz topples Sinner in China Open epic
Carlos Alcaraz struck seven successive points in a deciding tie-break to seal a remarkable victory over world number one Jannik Sinner in the China Open final.
The leading lights of tennis' next generation of stars battled it out for well over three hours in Beijing on Wednesday before Alcaraz finally prevailed 6-7 (6-8) 6-4 7-6 (7-3).
Having cruised into a 5-2 lead in the opening set, Alcaraz wobbled to allow defending champion Sinner to reel off four of the next five games to force a tie-break that the Italian won with three breaks of serve.
An hour-long second set was settled in Alcaraz's favour, but a topsy-turvy decider went the distance.
Having given up the first break, Sinner responded by hitting back in game eight to restore parity, with another tie-break required.
Sinner breezed into a 3-0 lead, only for Alcaraz to string together an extraordinary run of seven straight points to claim the crown.
Data Debrief: King Carlos
It is now 6-4 to Alcaraz in the head-to-head between the Spaniard and Sinner.
Alcaraz has now won all three of their matches this season, triumphing previously at both Indian Wells and Roland-Garros. It is the first time either of the duo has won three straight matches against the other.
At the age of 21 years and 150 days, Alcaraz is the youngest player to defeat the world number one in an ATP event final after losing the opening set since Juan Martin del Potro (20y 356d), who came back to beat Roger Federer at the US Open in 2009.
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