Manchester City have filed an official complaint after a member of their coaching staff was allegedly spat on by a Liverpool fan during Sunday's 2-2 draw at Anfield.
The Premier League champions believe the unidentified member of the backroom staff was targeted as City staff and substitutes celebrated Phil Foden's equaliser in the second half.
According to Sky Sports, City have caught the incident on one of their cameras and an investigation is understood to be ongoing.
Speaking to Sky Sports after the game, Pep Guardiola said he was 'pretty sure' the incident occurred, but admitted he had not witnessed it directly.