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At the point when Daria Kasatkina cut short her 2025 season ahead of schedule in October, the former world number eight explained how she had "encountered a barrier."

"The schedule is too much. My mental and emotional state is frayed, and, regrettably, I'm not alone," she expressed.

Elina Svitolina of Ukraine, a former Wimbledon final four contender, had earlier declared she was not in "the right headspace" to continue, while sitting Grand Slam champions Iga Swiatek and Carlos Alcaraz additionally believe the calendar is excessively lengthy.

This issue is still being argued as the world's foremost tennis players gather again in Australia for the commencement of the 2026 season.

A slightly longer off-season than 2025 has been greeted positively. However, several weeks is not seen as enough time for proper recovery before work commences for an season lasting nearly a year considered among the most grueling in professional sport.

"The demands of tennis are harder than ever before," stated Dr. Robby Sikka, head of medicine at the Professional Tennis Players' Association (PTPA).

"Matches and rallies are longer, players are faster, they're hitting the ball harder.

"We have a duty to safeguard our athletes and give them a more sustainable sport."

So what is being done and what further steps could be taken?

Shortening the Season

The 2025 season spanned 47 weeks for many male competitors, beginning with the United Cup team event in late December 2024 and finishing with the Davis Cup final in late November.

The WTA Tour season ended two weeks earlier when the tour finals finished in early November. The governing body moved the Billie Jean King Cup Finals forward to September to alleviate scheduling concerns.

ATP officials claim it does not take the concerns of the players "without seriousness," while WTA leadership notes player welfare will "consistently be the foremost concern."

That did not placate the PTPA, which commenced proceedings against the men's and women's tours in March, citing "anti-competitive practices and a blatant disregard for player welfare."

Revamping the calendar is an apparent fix but cannot be implemented readily given the complex nature of tennis governance, where the four Grand Slams, ATP, WTA, and ITF each have significant influence.

"We must consider whether we can reclaim time at the end of the year for an longer break, or can we create space during the season so there is a short hiatus," noted Dr. Sikka.

Former world number one Andy Roddick, a consistent campaigner for adjustments, says the season should not go past 1 November.

The ATP Tour has cut the number of events which factor into the rankings for 2026, which it thinks will lessen "overall demands" on the players.

"One point that often gets overlooked: players determine their own playing calendar," commented ATP chairman Andrea Gaudenzi.

"This level of choice is unusual in pro sports. But with that comes obligation - understanding when to compete and when to rest."

Extending several compulsory competitions across a fortnight - creating so-called 'mini Slams' - has also been criticized.

"I believe competitors are more worn out mentally and physically because they're being on the road longer," said Britain's former men's world number one, Andy Murray.

Alongside mental burnout, there are concerns about the growing physical demands.

Players experience a higher rate of upper-body injuries in particular times of the year, according to PTPA research.

The organization says these "anticipated spikes" are down to the seasonal itinerary and the turnarounds between court surfaces.

Fewer Late Nights & More Ball Consistency

When a memorable contest at the Australian Open concluded in the early hours in 2023, it seemed set to trigger adjustments.

In 2024, the tours implemented a new rule stopping matches beginning past 11pm.

But there have still been instances of matches concluding long after midnight - which medical experts argue must not be glorified.

"When you are done playing you just don't go home," said Dr. Sikka.

"You have to do media, recover, work with the physiotherapist. Your day extends well beyond the match.

"The physical and neurological systems lack adequate time to recuperate. There is no other sport which mandates that."

Different tournaments playing with different balls - leading to changes in weight and pace - has been cited as a source of a rise in upper body injuries.

"I have suffered numerous arm, shoulder, and wrist issues," said one top British player, "and I'm seeing more and more of these injuries across the tours."

A former US Open champion, who ended his career last year with an ongoing wrist injury, believes tournaments in the same swing should use one type of ball.

"Implementing this would not be overly complex - the same ball for clay, the same for hard and the same for grass. That would be extremely beneficial to the players," he said.

The tours adopted a more centralized ball-selection system during 2025 and project "complete uniformity" in the coming years.

Take Lessons from the NFL & Shield Developing Athletes

Medical researchers believe tennis must take cues from how American team sports use data to direct the welfare of its stars.

Following data-led analysis, the NFL required consistent playing surfaces and advanced helmet technology to minimize the risk of injury.

"The league has altered its regulations using concrete research," said an analytics expert whose firm provides data to monitor player welfare.

"We've seen the economic model is skyrocketing because their games are so competitive and they're keeping players out on the field.

"They're putting their money where their mouth is by protecting athletes and allocating major funds – that model is the exemplar."

Other leagues have implemented policies aimed at protecting specific positions, limiting their exertion at the professional level and putting limits for young players.

Some retired players believe the strain put on the upper body of tennis players from a tender age is a key element in their injuries later on.

"Training begins in childhood and have so many repetitions of our groundstrokes," said the former champion.

"Over time, the wrist suffers the consequences. Way more players have problems with the wrist. I think the problem is the many, many repetitions."

Players 'Motivated' for Change - What Do They Want?

An rising contingent of players are becoming vocal about the demands placed on them.

Current world number ones are among a group of stars increasing demands on the Grand Slams with calls for a larger share of revenue, as well as genuine dialogue about the calendar extent, longer competitions and fixture planning.

Last year, a top-ten American player said it was "unreasonable" he was only able to take one week off before the new season.

Sympathy can be in short supply, though, given top players sometimes commit to lucrative exhibition events.

One Grand Slam champion from Britain says the grind is a "difficulty" but thinks top players "criticizing the calendar" is not a good look.

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