Japanese swimming sensation Rikako Ikee has announced that she has leukemia.
The 18-year-old tweeted on Tuesday that tests confirmed she has the disease.
Ikee began training in Australia last month, but returned to Japan after complaining of illness. She has reportedly been hospitalized.
In the tweet, she said her illness can be cured with proper treatment but that she has to pull out of the national championship in April.
She also said she will concentrate on making a full recovery so that she can come back even stronger.
Ikee holds the national record in multiple events, including the women's 100-meter butterfly. She is widely tipped to scoop up medals at next year's Tokyo Olympic Games.