Britain's former world number one Andy Murray admits he will be nervous when he makes his competitive return from hip surgery in the Fever-Tree Championships at Queen's next week.
The three-time Grand Slam winner, 31, will play for the first time in almost a year.
The Scot's last competitive appearance was at Wimbledon last July, and he had surgery in January.
"There are a lot of doubts when you've not played for a long time," he said.
"I'm expecting to be very nervous when I go back out there.
"Coming back from injury you're always kind of second guessing yourself.