Ederson had a Loris Karius moment against Crystal Palace at the Etihad Stadium but was let off the hook after the gaffe.
City found themselves 2-0 down to Patrick Vieira's side, who scored both goals from set pieces in the first half. John Stones put through his own net before Joachim Andersen headed home the second shortly after.
And the visitors had the ball in the net for a third time when Jordan Ayew seized on the error from Ederson.
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The Brazilian shotstopper made a save to to deny Cheick Doucouré from distance and he was keen to get City playing quickly as always.
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However, Ederson's attempted throw out got a touch off Odsonne Edouard and ended up right in the path of Ayew, who slotted in.
The Ghana international was ready to celebrate but referee Graham Scott blew his whistle and chalked off the goal. City players had stopped to appeal but plenty felt as though the incident was no different to Karim Benzema nicking the ball of Karius in the 2018 Champions League final.
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Law 12 in the football rule book states that an indirect free-kick is awarded if "a player prevents the goalkeeper from releasing the ball from the hands, or kicks or attempts to kick the ball, when the goalkeeper is in the process of releasing it."
City have had great difficulty against Palace in recent years but pulled one back after half-time through Bernardo Silva.
Then Erling Haaland scored an incredible 19-minute hat-trick to secure a thrilling 4-2 win for the Premier League champions.
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Haaland now leads the Premier League Golden Boot charts with six goals in four games and is averaging a goal every 54 minutes in the English top flight.
Topics: Crystal Palace, Ederson, Manchester City