ANDY MURRAY'S Wimbledon swansong looks in serious doubt after he was forced to retire from his second-round match at the cinch Championships with a back injury.

The two-time SW19 champion will undergo a scan to determine the extent of the problem which left his right leg numb just before he walked on to Centre Court at Queen’s Club to face Australian Jordan Thompson.

Murray was clearly in pain during the warm-up, and his right leg and hip seemed to buckle underneath him as he served for the first time in the match.

The 37-year-old had extensive treatment after three games on his right hip — which he had replaced in 2019 — his right knee and his lower back.

He tried to play on but was eventually forced to call it a day, shaking hands with Thompson at 4-1 down before exiting a stunned Centre Court, upon which he has been crowned champion a record five times, for probably the last time.

With Wimbledon less than a fortnight away, Murray’s participation appears unlikely, although he refused to rule out one last appearance before his anticipated retirement later this year.

“In hindsight, I wish I hadn’t gone on there because it was pretty awkward for everyone,” he said.

Pressed on whether he fears missing Wimbledon, Murray added: “I wouldn’t know.

“Like all tennis players, we have degenerative sort of joints and stuff in the back, but it’s all predominantly been left-sided for me my whole career. I have never had too many issues with the right side.

“So maybe there is something that can be done between now and then, you know, to help the right side.

“I will get scans tomorrow and get it rechecked and see if there’s anything that can be done.”