Professional Tennis Players Association (PTPA) executive director Ahmad Nassar believes that the tours and Grand Slams should help set up a legal defence fund for players.

Jannik Sinner remains in the dark over the outcome of his two failed doping tests, but players without his level of resources are faced with footing the bill for similar cases.

Nassar thinks that money should be set aside in order to help players fight to clear their name.

He told BBC Sport that in an "ideal world, every player would have resources available to him or her, whether or not they can afford it".

While the PTPA cannot make that happen directly as of yet, he continued: "The four Grand Slams and the two tours - why don’t they fund a legal defence fund for the players to be able to tap into?

"They provide players' prize money and benefits and pensions. Why wouldn't you provide them access to third-party lawyers who are not on staff?

"That is certainly something we would push for, and versions of that certainly exist in some other sports.

"Set up a legal defence fund, we are happy to administer it, but we are really four years old and I think it's an unfair burden to put on either the PTPA or the players themselves directly."