Novak Djokovic has cast doubt on whether he will play at Wimbledon next month, following his shock exit from the French Open.
The Serbian, who has struggled with injury for much of the last year, was asked when he planned to make his first grass-court appearance.
He replied: "I don't know. I don't know if I'm going to play on grass.
"I don't know. I don't know what I'm going to do. I just came from the court. Sorry, guys, I can't give you that answer."
Djokovic was sent spinning out of the French Open by world number 72 Marco Cecchinato.
The 12-time grand slam winner needed lengthy treatment on a neck problem after dropping the first set. But Cecchinato proved an even bigger pain in the neck for the 2016 Paris champion.
Djokovic had two set points at 6-5 in the second but went on to lose a tie-break. Italian Cecchinato was mixing things up to great effect, tying Djokovic to the baseline while throwing in regular, at times remarkable, spin-heavy drop-shots from the back of the court.
Djokovic somehow regrouped to win the third set at a canter, and a suddenly frustrated Cecchinato was hit with a point penalty.
The storm seemed to have blown itself out and Djokovic served for the set at 5-3. But from somewhere Cecchinato got a second wind and took the fourth in a thrilling tie-break, converting a fourth match point to win 6-3 7-6 (7/4) 1-6 7/6 (13-11).