Andy Murray has not made a decision on whether he will be fit enough to make a planned Wimbledon farewell next week.
The 37-year-old Briton had a procedure on a back injury at the weekend.
Murray is set to retire later this year and hopes for a final appearance at Wimbledon, where he won two of his three Grand Slam titles.
"Following his surgery on Saturday, Andy is continuing to work with his medical team to confirm when he will return to the court," Murray's team said in a statement.
"At this stage, no decisions have been made and we will update further as soon as anything has been finalised.