The PTPA says it was created to “support, protect and improve the welfare of players on and off the field”.

Until now, she has had strained relations with tennis’ established powers and failed to get into the room where key decisions are made.

Nassar said he believed the system was “grossly unfair to all players, including Jannik” and highlighted the case of Britain’s Tara Moore.

Moore was Britain’s leading women’s doubles player when she was provisionally banned for testing positive for nandrolone and boldenone in May 2022.

She was exonerated by an independent tribunal in December 2023, but 10 months later she is still waiting for the ITIA appeal against that decision to be heard by Cas.

“I have many reservations about the way each of these cases is being handled,” Nassar continued.

“In Tara, here is a player who won an appeal, and who was certainly not the number one player in her sport, but who still missed 18 months.

“She is still appealing and fighting to restore her reputation. There is no victory in this case.”

Wada’s appeal against Sinner’s verdict may well be heard more quickly.

An appeal by former world number one Simona Halep was heard just over four months after it was filed, with the verdict delivered by Cas a further month after the hearing.

It was only last Thursday, however, that the panel’s full reasoning was released.

Cas reduced Halep’s suspension for testing positive for roxadustat from four years to nine months, but concluded that despite steps actively taken by her to verify the contents of the supplement, “there was misconduct on the part of the player.”

Wada also hopes to prove Sinner’s fault or negligence.

The original court ruled that Sinner was inadvertently contaminated with clostebol by his physiotherapist, Giacomo Naldi, who applied an over-the-counter spray containing the banned substance to treat a cut on his own hand.