Andy Murray's awkward x-ray

Three-time grand slam winner Andy Murray has announced he had resurfacing hip surgery in London on Monday, but the former world No 1 may have revealed a little more than he intended.

The British star, who crashed out of the first round of this month's Australian Open, announced plans to retire in by the end of this year due to persistent injuries.

Hinting that surgery could be his only option, Murray confirmed he had gone under the knife with an Instagram post overnight showing off his new metal hip.

"I underwent a hip resurfacing surgery in London yesterday morning ... feeling a bit battered and bruised just now but hopefully that will be the end of my hip pain," he wrote.

"I now I have a metal hip as you can see the second photo and I look like I've got a bit of a gut in photo one."

But the 31-year-old's surprise hospital snap wasn't just what caught the eyes of his 1.6 million followers.

"The X-ray shows more than his hip tho [sic]," one fan pointed out.

"You can see ya c*** in the second one mate," another wrote.

The picture racked up just under 100,000 likes in an hour as well as plenty of eggplant emojis.

This article was first published on nzherald.co.nz and is reproduced here with permission.