A rock legend who is considered one of the greatest drummers of all time has been hospitalized and is “critically ill,” according to his family. Ginger Baker’s family posted a tweet announcing Baker’s illness and asking for prayers.

No other details were provided. You can see the tweet below.

“Baker, 80, is still best known for his time with Eric Clapton in Cream, the short-lived ’60s psychedelic rock band whose classic tracks include ‘Sunshine of Your Love,’ ‘Crossroads,’ ‘Strange Brew’ and ‘I Feel Free,'” The New York Post’s Page Six reports, noting that the other member of Cream, bassist Jack Bruce, died in 2014.

“Baker stayed with Clapton to form Blind Faith with Steve Windwood, before moving to Lagos to play with Fela Kuti,” The Post reports. “He has had a varied career since, playing in Hawkwind, John Lydon’s Public Image Ltd, as well as with jazz musicians like Charlie Haden and Bill Frisell. Rolling Stone named him No. 3 in the greatest drummers of all time.”

Baker revealed in a 2013 interview with Rolling Stone that he had “extremely painful” degenerative osteoarthritis and pulmonary disease from smoking. In 2016 he reportedly had open-heart surgery after a bad fall.