In this file photo taken on June 3, 2019, Argentina's Juan Martin del Potro returns the ball to Russia's Karen Khachanov during their men's singles fourth round match on day nine of The Roland Garros 2019 French Open tennis tournament in Paris. (KENZO TRIBOUILLARD / AFP)

BUENOS AIRES - Former world No 3 Juan Martin del Potro has been offered a wildcard for the Argentina Open ATP 250 tournament in February, organizers said on Monday.

Del Potro has been sidelined since June 2019, when he suffered a fractured right patella for the second time in nine months during the Queen's ATP 500 tournament in London

But the 33-year-old's participation will hinge on whether he can successfully recover from the latest operation on his troublesome right knee.

"If he is fit, one of the wildcards is for him," tournament director Martin Jaite told reporters on Monday. "It will be a decision for him to make when and if he feels that he is fit to play."

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Del Potro has been sidelined since June 2019, when he suffered a fractured right patella for the second time in nine months during the Queen's ATP 500 tournament in London.

He has since undergone four operations, the most recent of which took place in Chicago in March.

The Argentina Open will be played from February 5 to 13 on the outdoor clay of the Buenos Aires Lawn Tennis Club.

Tournament officials said Argentina's 13th-ranked Diego Schwartzman and Austrian world No 15 Dominic Thiem had confirmed their participation in the event.