Michael Olaitanâ€™s agent said the Olympiakos striker, who collapsed during Sundayâ€™s Athens derby against Panathinaikos, is not suffering from any serious medical condition.
The 21-year-old Nigerian was rushed to hospital for tests after briefly losing consciousness midway through the first half of the runaway Super League leaderâ€™s 3-0 home defeat.
â€œI am pleased to inform everyone that after initial tests there is no sign of a serious medical condition,â€ said Olaitanâ€™s representative Paschalis Tountouris on Monday.
â€œWhat appears to have happened is that Michael had a mild case of viral myocarditis. As a precautionary measure he will remain in hospital for the next few days to undergo further tests.â€
Myocarditis is an inflammation of the heart muscles often caused by an infection.
â€œMichael is in a good condition and sends his best wishes to all those who have shown great interest in his health after yesterdayâ€™s incident,â€ Tountouris said.
â€œHe is eager to return as soon as possible to the pitch.â€