Jonny Evans's actions in spitting at Papiss Cisse were "simply disgusting", according to the Football Association panel that found the Manchester United defender guilty.
The written reasons for the punishment given to Evans and Cisse were released by the FA on Thursday.
The three-man panel is quoted by BBC Sport as saying: "The ordinary man in the street will find his action to be simply disgusting. It should not be allowed in any walk of life, let alone any football field."
Cisse, who accepted the original charge, will miss seven games through suspension for his part in the incident.