Veteran Spaniard Fernando Verdasco intends to take legal action against the French Open after being forced out of the tournament following a positive Covid-19 test.
The 36-year-old, a former world number seven, said he had previously tested positive for the virus, asymptomatically, in August.
However Verdasco, who has been tested a number of times since, claimed he was refused the chance to take another test to find out if the initial one was inaccurate.
Verdasco indicated the saga had left him unsure whether he wanted to get back on the court any time soon.
"I don't know if I'm going to play again this year or not because you lose the desire for everything," he said.
"They (French Open organisers) do things as they please, without any coherence and without any respect. The rights of the players count for nothing.
"Then the next day, following when I have been left out of the draw, they change the rules and now you can do a second test – that was the final straw."