Golf great Greg Norman has returned to hospital for further COVID-19 treatment, saying he's never felt so sick.
The 65-year-old was initially admitted to hospital in Florida on Christmas Day where he was diagnosed with coronavirus.
The former world No.1, rated as one of Australia's greatest-ever golfers, posted on Instagram that he had returned for further treatment.
He said he was getting an anti-body infusion and hoped to only stay the day, adding that the symptoms of the "hideous virus" had hit hard.
"I am fit and strong and have a high tolerance for pain but this virus kicked the crap out of me like nothing I have ever experienced before," Norman posted.
"Muscle and joint pain on another level. Headaches that feel like a chisel going through your head scrapping little bits off each time, fever, muscles that just did not want to work like yesterday walking my dog Apollo my quads and hip flexors just did not want to work due to fatigue."
The two-time British Open winner said he'd lost his sense of taste and was struggling to remember names and words, while he also felt irritation.
"For those doubters out there, do not judge or cast unwarranted comments and opinions I would not anyone, even you, to experience this hideous virus," he said.
"So I ask, do what is right, not just for you, but your family friends co-workers and other people around.
"I am luckier than most and for that I am thankful and blessed."