Novak Djokovic has announced his complete departure from the Professional Tennis Players Association, the players' union he established alongside Canadian Vasek Pospisil six years ago.
The Serbian tennis star revealed his decision on social media yesterday, pointing to persistent worries about how the organisation operates and how his public profile has been utilised.
The 38-year-old world number four expressed dissatisfaction with the body's transparency and governance structures.
His exit comes merely days before the Australian Open commences in Melbourne on 18 January, where the 24-time Grand Slam champion will pursue a record-extending 25th major title.
Novak Djokovic has quit his role at the Professional Tennis Players Association
|PA
In his statement, Djokovic reflected on the association's founding principles: "I am proud of the vision that Vasek and I shared when founding the PTPA, giving players a stronger, independent voice - but it has become clear that my values and approach are no longer aligned with the current direction of the organisation."
The Serbian champion emphasised his intention to redirect his energies elsewhere.
"I will continue to focus on my tennis, my family, and contributing to the sport in ways that reflect my principles and integrity," he wrote.
He concluded by wishing those remaining with the organisation well, whilst declaring this particular chapter firmly closed.
The PTPA initiated legal proceedings against tennis's governing bodies in March last year, targeting the ATP, WTA, International Tennis Federation and the International Tennis Integrity Agency over alleged anti-competitive practices and inadequate player welfare protections.
Novak Djokovic will be looking to win a record 25th Grand Slam | REUTERS
The four Grand Slam tournament organisers were subsequently added to the lawsuit in September.
Djokovic distanced himself from the litigation at the time, stating he disagreed with certain elements of the legal challenge, and notably was not named as a plaintiff in the case.
Both the ATP and WTA firmly rejected the accusations levelled against them.
In December, the PTPA announced it had reached a settlement with Tennis Australia ahead of the Melbourne tournament.
Daniil Medvedev has weighed in on his fellow competitor's departure, suggesting it represents a "bad look" for the players' body.
Daniil Medvedev called Novak Djokovic's exit 'a bad look'
| REUTERSThe Russian's assessment underscores the significance of losing such a prominent founding figure from the organisation's ranks.
Djokovic, meanwhile, has turned his attention firmly towards the forthcoming season.
The Serbian will compete at the Adelaide ATP event from 12 to 17 January as preparation for his Melbourne campaign.
Victory at the Australian Open would see him claim an unprecedented 25th Grand Slam title, cementing his position as the most decorated major champion in tennis history.