Andy Murray has spoken of his latest “frustrating stop-starty period” following an injury setback which has kept him out since last month.

The three-time Grand Slam winner has not played since Rotterdam in March – before he was forced to withdraw from the Miami Open due to groin pain. The 33-year-old Brit said the issue is not serious, but is yet to confirm where he will next feature.

“It’s just been another frustrating stop-starty period. The positive thing is it’s nothing very serious,” Murray told the PA news agency.

“I need to be consistently practising (rather than) having these enforced breaks. That was the thing in December, why I think I got into such a good place was because of the two months of practising basically six days a week every week for a couple of months.

“By the end of that my game started to feel really good. That’s the first thing is to be able to be on the practice court consistently and then I obviously need to get the matches. How many matches that is, I don’t know.”