At the moment when the United manager probably assumed the team's momentum would never turn, Manchester United managed to inflict Oliver Glasner's team's opening Selhurst Park setback in the Premier League since February.
The Palace manager's players started strongly rightfully went ahead via their forward's retaken penalty. However they failed to capitalize on their control and having failed to score against Palace, the visitors responded with a rapid double from the Dutch forward and Mason Mount.
It was a frustrating afternoon at the end following a busy period for the Palace boss, who witnessed his winger limp off with a serious problem in the first period.
His Portuguese counterpart may have kept his feelings controlled when proceeding down the tunnel immediately after the match's conclusion.
The United manager minimized comparisons between his and Glasner's strategic methods in the buildup, though recognizing that the opposition "are just doing things better than us|aspects superior to ours|elements more effectively".
His response to the poor performance versus reduced Everton was to change both wing-backs, including the young winger occupying the right wing while the Portuguese took over from Dorgu.
The visitors likely felt a opening to capitalize considering they enjoyed extra rest days and nearly scored first inside the opening minute.
A long throw generated disorder in the home penalty box but somehow the ex-United shot-stopper produced a point-blank save near the net to deny Casemiro.
The near miss functioned as a warning for Palace following the midday start that was scheduled by TV requirements.
Quickly opportunities began to come frequently. Following wasted multiple opportunities during European action, it appeared could potentially not become the striker's opportunity after he sent attempts off target during the first quarter.
But in a week when talks over Mateta's contract extension have stalled, the French striker emerged who provided the first goal.
A further accurate delivery by the midfielder enticed the young Frenchman into making contact after recently producing excellent defensive stop to stop the winger, the 20-year-old was forced to foul his fellow Frenchman inside the area.
Palace's shot-stopper came out in a baseball cap to block the sun 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 enabling the Dutchman to chest the ball down and pivot in one motion to generate a strike that flew into the net.
Having survived a frantic moment when the Dutchman nearly netted again at the wrong end, their afternoon got even better a few minutes later as the Dutch attacker was tripped near the 18-yard line by Marc Guéhi.
There was a moment's hesitation in the defensive wall when Fernandes rolled the free-kick to Mount and that allowed him to beat Henderson using a fierce strike.
Without Sarr's pace to call on, Glasner's side found it difficult to generate further attempts as United were able to complete an important win elevating the Red Devils climb above Palace to sixth position.
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