The former England boss took training on Thursday morning before falling ill. He was due to address the media at a press conference at 1.30pm but this has now been cancelled, with the club providing an update on his condition just over half an hour before the sit-down was meant to get under way.
Palace are currently preparing to face Everton on Monday, with Hodgson under mounting pressure amid a concerning run of form. With just one win to their name since November, they are currently 15th in the Premier League table, just five points above the relegation zone.