Kei Nishikori underwent arthroscopic left hip surgery on Tuesday, which will keep him off the men’s tour for about six months.
I will work as hard as I can and the goal is to be back in about 6 months. Thank you for all your support and look forward to see you on the tour again soon. Kei Nishikori
“Hi everyone, I wanted to give you an update,” Nishikori posted on Twitter. “As most of you know, I have not been able to play since Indian Wells with my left hip injury.
“After trying several different rehab options I have decided (together with my medical team) to have arthroscopic hip surgery this week.
“I will work as hard as I can and the goal is to be back in about 6 months. Thank you for all your support and look forward to see you on the tour again soon.
The 32-year-old from Japan, who is currently No 46 in the ATP Rankings, sat out the Australian Open and has not played on tour since a second-round loss to Dan Evans at Indian Wells in October.
Nishikori lost to Novak Djokovic in the 3rd round of the US Open in September, where he reached the final in 2014 and lost to Marin Cilic.
He has climbed as high as World No 4, lifted 12 ATP Tour trophies and competed in the Nitto ATP Finals four times.