Reigning champions Manchester City hosted Manchester United, who won 2-1 in Matchweek 16 of the English Premier League.
Man City's Croatian defender Josko Gvardiol opened the scoring in the 36th minute.
Man United restored parity in the 88th minute thanks to a penalty shot by their Portuguese midfielder Bruno Fernandes.
But Ivorian striker Amad Diallo netted the winning goal for the guests in the 90th minute.
Man City are fifth, with 27 points, in the current Premier League standings, while Man United have 22 points and are twelfth.
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