Oliver Glasner's future as Crystal Palace manager is in serious doubt after the club's poor run of form.
The Austrian manager has already announced he will leave the club in the summer when his contract expires.
But a section of Palace's away support turned on the 51-year-old during Thursday's 1-1 draw at Zrinjski Mostar in the Conference League, chanting "we want Glasner out".
Sources have told BBC Sport that Palace are now considering Glasner's position after a run of just one win in their past 15 games.