Just when the Portuguese coach must have thought the team's momentum remained negative, Manchester United delivered Oliver Glasner's team's initial home loss in the Premier League from February onward.
The Palace manager's side had been rampant and deservedly took the lead through Jean-Philippe Mateta's second penalty attempt. However they failed to convert superiority into goals after previously struggling to find the net at Selhurst, United struck back two times in quick succession through their summer signing and the English midfielder.
The match proved disappointing afternoon at the end of a long week for Glasner, who observed his winger leave injured with a worrying issue prior to the break.
Ruben Amorim probably contained his feelings controlled when proceeding toward the dressing room right after the game's end.
The United manager minimized comparisons between both managers' game philosophy during preparation, although he acknowledged that Glasner's team "currently execute things better than us|aspects superior to ours|elements more effectively".
The answer to the poor performance facing ten Toffees was to change the wide defenders, including the young winger moving to the right flank while the Portuguese assumed Dorgu's position.
United must have sensed an opportunity to profit since they possessed extra rest days and came close to leading after 43 seconds.
A lengthy throw-in generated disorder in the home penalty box yet remarkably Dean Henderson made a close-range stop on his goalline to prevent the midfielder.
The close shave served as a wake-up call for Palace post the lunchtime beginning which was determined for broadcast purposes.
Quickly opportunities began to come in quick succession. After missing multiple opportunities in midweek, it appeared could potentially not become the striker's opportunity after he sent efforts missing the goal inside the opening 15 minutes.
But in a week when talks over the striker's new deal have stalled, Mateta stepped up who found the breakthrough.
Another precise pass from the England international lured Leny Yoro into the challenge after recently producing a brilliant block to stop the winger, Yoro could only bring down his fellow Frenchman in the penalty box.
Henderson re-emerged wearing a cap to protect his vision from the low sun but he will be disappointed enabling Amorim's team to equalise eight minutes after the restart.
Palace were caught napping from a rapid Fernandes set-piece and Zirkzee was able to bring under control and pivot in one motion to generate a strike that sailed into the far corner.
Having survived a frantic moment where Zirkzee almost scored once more in his own net, their afternoon got even better a few minutes later as the Dutch attacker was tripped on the edge of Palace's box by the English center-back.
A temporary uncertainty developed in the defensive wall when Fernandes rolled the dead ball to the midfielder permitting Mount to beat Henderson via a strong shot.
Lacking the winger's speed to utilize, Palace could barely muster additional opportunities while the visitors managed to see out a crucial victory elevating the Red Devils climb above Palace to sixth position.