Ronnie O'Sullivan has withdrawn from the World Snooker Grand Prix 2025 scheduled at Kai Tak Arena next week, citing health reasons.

"I am very disappointed not to be competing. I had been eager to make my comeback in Hong Kong and have put in my utmost effort, but unfortunately must consider my health. I wish to sincerely thank the organisers and all the Hong Kong fans for their support," the 49-year-old star said in a statement on Saturday.

The Rocket, as he's nicknamed, will be replaced by world number 33 Hossein Vafaei.

The event will be the first ranking tournament in the SAR since 1989.

World number one Judd Trump, who -- like O'Sullivan -- became a Hong Kong resident through the Quality Migrant Admission Scheme, will now headline the competition from March 4 to 9.

Other big names include Mark Williams, Mark Selby and Ding Junhui.