The Champions League match between Paris Saint-Germain and Istanbul Basaksehir was abandoned after both teams walked off the pitch following an alleged racist slur by the fourth official.
Play was initially suspended for almost two hours after a row initiated in the 14th minute when Pierre Webo, Basaksehir’s assistant coach, was sent off.
Video footage emerged which appeared to show Webo, a former Cameroon international, accusing Romanian fourth official Sebastian Coltescu of using racist language.
Basaksehir substitute Demba Ba could be seen protesting on the touchline, while PSG players including Neymar and Kylian Mbappe also appeared to be demanding an explanation.
Demba Ba asked the official: “Why, when you mention a black guy, do you have to say this black guy?”
Istanbul players then walked off the pitch in the 23rd minute in protest, with PSG players following.