Lleyton Hewitt is targeting a return to action in time for the French Open after undergoing surgery on his foot.
The former world No. 1, who lost to Yen-Hsun Lu in the opening round of the BNP Paribas Open last week, had the operation at the weekend.
It is the latest setback in a series of injury troubles for the 30-year-old, who has slipped to No. 64 in the world rankings.
Hewitt had surgery on both hips last year, and his form has also come under scrutiny, having crashed out of the Australian Open in the first round.
Hewitt could be out of action for over a month, but is expecting to be fully fit in time for the second grand slam of the year at Roland Garros at the end of May.
"My foot has been troubling me for some time and I needed the surgery to enable me to compete at my best with the two grand slams coming up soon," Hewitt said.