Pep Guardiola has rejected suggestions by UEFA president Aleksander Ceferin that he disrespected European football's governing body by not attending this week's VAR summit.
Video assistants will be used to help officiate on contentious decisions during the last-16 ties in the Champions League.
At a summit in Frankfurt on Monday, only head coaches from Juventus, Lyon, Paris Saint-Germain, Roma and Schalke – who face City in the opening knockout round - were present.
The Premier League champions were among the teams to send another member of staff, however, with assistant coach Brian Kidd in attendance, but this was not deemed acceptable by Ceferin.