French Open champion Rafael Nadal says he "doesn't want to keep playing" if he continues to need anaesthetic injections to numb chronic foot pain.
Nadal, 36, won his record-extending 14th title at Roland Garros having "no feeling" in his left foot.
The Spaniard had multiple injections during a tournament where he won a 22nd Grand Slam title on Sunday.
"It's obvious with the circumstances that I am playing, I can't and I don't want to keep going," said Nadal.
The two-time Wimbledon champion says he would not play at the All England Club, where the grass-court major starts on 27 June, if a nerve-burning treatment next week cannot solve the issue.
Nadal suffers from Mueller-Weiss syndrome - a rare degenerative condition that affects bones in the feet - and was limping at the Italian Open just 10 days before Roland Garros began.