Legendary boxer Muhammad Ali has been hospitalized and is being treated for a respiratory issue, Sputnik reported.

“Ali, who suffers from Parkinson’s disease, is being treated by his team of doctors and is in fair condition,” family spokesman Bob Gunnel wrote in a statement. “A brief hospital stay is expected. At this time, the Muhammad Ali family respectfully requests privacy.”

Ali, 74, is widely considered to be one of the greatest boxers in history.