Manchester City boss Pep Guardiola says he respects Arsenal on the pitch – but “not much off the pitch”.
City had their two-year European suspension overturned by the Court of Arbitration for Sport (Cas) on 13 July.
City are understood to believe Arsenal were a chief instigator behind a collective request by eight Premier League clubs for Cas not to allow a delay to the ban pending appeal.
As the case was decided before the end of the season, no delay was needed.
Some senior figures within the game are annoyed City had their punishment for Financial Fair Play regulation breaches reduced, while the club are angry at the behaviour of some of their rivals.
Last week, Guardiola demanded an apology and told clubs to stop “whispering” about City behind their backs.
Chelsea, Burnley, Leicester, Liverpool, Manchester United, Tottenham and Wolves were the other seven top-flight clubs involved in the collective approach to Cas.