Seve Ballesteros says he is feeling well after being admitted to a Madrid hospital earlier this week.
The five-time major winner was taken to the La Paz hospital after fainting on Monday.
The Spaniard, who retired from competitive golf soon after his 50th birthday last summer, has undergone a series of tests and remains under observation.
The 51-year-old gave an update on his condition in a message posted on his personal website.
"I wish to inform that I am feeling very well," Ballesteros wrote. "I am awaiting the results of the clinical tests that I have been going through.
"I wish to personally thank all of those who are concerned about my health condition.
"I want you to know they make me feel very good and I feel greatly supported by all of you."
Ballesteros is reportedly due to be discharged tomorrow.
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