“I am leaving in a difficult situation, but if my departure can help the club financially, it makes me a bit less sad,” Gundogan said.
Napoli had little time to recover before FC Barcelona doubled their lead.
Referee Paul Tierney missed the initial incident, but after consulting the VAR screen, he awarded United a penalty, which Bruno Fernandes duly converted.
But Guardiola yelled from the sidelines for the 22-year-old Haaland to take the penalty kick they had been awarded in the closing minutes.
Manchester City will go into next week’s clash with Liverpool with a one-point lead.
Today’s defeat comes after the gunners were trashed in their first and second game by newly promoted Brentford and Chelsea.
