Andy Murray says he needs to weigh up "if all the hard work is worth it" after an encouraging run at Wimbledon was ended by Canada's Denis Shapovalov.
The 34-year-old Briton, playing only his second tournament in three months after a groin injury, said it was "positive" to get through unscathed.
"The negative is I feel like I can do better tennis-wise, play better and close matches out," he said.
"I need time on the match court and the practice court. I've had neither."
After losing in straight sets to 10th seed Shapovalov in the third round, Murray said he was disappointed to not reach a higher level.