Heart of Midlothian stalwart Peter Haring may have kicked his last ball for the Tynecastle club after revealing he has to go under the knife for a knee operation next week.

And the 30-year-old, who is out of contract at the end of the season, admits he doesn't know what the future will hold for him at Hearts.

The Austrian midfielder last played for Steven Naismith's side two days into the new year in a 2-1 win at Livingston and hasn't featured since.

And he will undergo surgery next week and Haring revealed, in an interview in his homeland, that he's not sure whether he will make it back this season.

He said: "Of course, this is very bitter for me, but I will have an operation in a week.

"Unfortunately, conservative measures with the knee were unsuccessful and we tried everything to avoid surgery.

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"I want to be fully fit and playing again by summer. But it looks like it will be very tight for this season.

"First of all, I have to concentrate on a 100 per cent recovery.

"I will just see what happens about the end of my contract. I can't influence it much.

"I like it here, but I'm not averse to a new experience either.

"There have been no discussions with Hearts so far. But as I said, my focus is on health."

Haring has made 129 appearances in total in all competitions and scored 11 goals since signing for the Jambos from SV Ried six years ago.