Arsenal manager Arsene Wenger will escape disciplinary action from the Football Association over his claims Raheem Sterling "dives well", Sky sources understand.
Manchester City winger Sterling was adjudged to have been bundled over by Nacho Monreal early in the second half of the match at the Etihad Stadium, with Sergio Aguero converting the penalty to put the home side 2-0 ahead.
Wenger disagreed with the decision, and was also upset by the lack of an offside flag in the build-up to City's decisive third goal from Gabriel Jesus after Alexandre Lacazette had given the Gunners a lifeline just after the hour.
In a post-match interview with the BBC, Wenger said: "I believe it was no penalty.
"We know that Sterling dives well, and he does that [win the penalty] very well."
Wenger also added: "You can accept it if City win in a normal way, they are a good side, but the way it happened is unacceptable."
Wenger's comments could have left him facing a sanction from the governing body.
However, Sky Sports News understands the Arsenal manager has been viewed to have not overstepped the mark - albeit only just.
Sunday's defeat left Arsenal in sixth place, now some 12 points behind Pep Guardiola's unbeaten side.
Following the international break the Gunners will host Tottenham, who sit third, four points ahead of their north London rivals.