Just when the United manager probably assumed his fortune remained negative, Manchester United managed to inflict the home side's initial home loss in the Premier League beginning in February.
The Austrian coach's side had been rampant and deservedly took the lead via their forward's retaken penalty. However they failed to make their dominance count following earlier difficulties to score against Palace, the visitors responded two times in quick succession from their summer signing and the English midfielder.
This represented a difficult afternoon at the end of a long week for Glasner, who saw his winger limp off with a worrying issue before half-time.
Ruben Amorim probably contained his emotions in check while walking off the pitch right after the final whistle.
The United manager minimized parallels involving his and Glasner's game philosophy during preparation, though recognizing that the opposition "simply perform things better than us|aspects superior to ours|elements more effectively".
The reaction following the lacklustre defeat facing ten Toffees meant modifying the flank players, with Amad Diallo occupying the right wing with the full-back assumed Dorgu's position.
The visitors likely felt a chance to benefit given that they had three more days to prepare and almost went ahead within the first minute.
A lengthy throw-in created confusion in the Palace area but somehow Dean Henderson produced a point-blank save near the net to stop the Brazilian.
The near miss acted as an alert for Palace after the early kick-off that was scheduled for broadcast purposes.
Quickly opportunities commenced appearing thick and fast. After missing multiple opportunities on Thursday, it looked it might not be the striker's opportunity after he sent attempts off target in the initial phase.
Yet amid days during discussions about the striker's new deal have stalled, it was the France international who provided the first goal.
Another precise pass from the England international enticed the young Frenchman into the challenge and, having just made superb interception to deny Yéremy Pino, the 20-year-old was forced to foul his compatriot inside the area.
The goalkeeper returned with head protection to shield his eyes from the setting sun yet he'll feel regret for permitting the visitors to level the score after the restart.
Glasner's team was unprepared via a fast United dead ball allowing the forward to bring under control while turning simultaneously to produce a shot that sailed into the far corner.
Having survived a goalmouth scramble where Zirkzee almost scored once more in his own net, their day improved further shortly afterward when the Netherlands forward was brought down outside the penalty area from the Palace defender.
A temporary uncertainty developed within the barrier during Fernandes' delivery the free-kick to Mount enabling the Englishman to beat Henderson with a powerful drive.
Without Sarr's pace to utilize, Glasner's side found it difficult to generate further attempts allowing Amorim's team to see out vital three points elevating United move above Palace to sixth position.
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