Crystal Palace say manager Roy Hodgson is stable in hospital after he was "taken ill" during training on Thursday morning.
Palace cancelled a news conference after the 76-year-old became unwell.
It was widely reported on Thursday morning that Palace are set to sack Hodgson, with the club 15th in the Premier League and five points clear of the relegation zone.
Palace face Everton at Goodison Park in the Premier League on Monday.
"Following news that Roy Hodgson was taken ill during today's training session, we can confirm that he is now stable and is currently undergoing tests in hospital," the club said on X, formerly known as Twitter.