Liverpool have complained to UEFA over alleged racist abuse aimed at teenage winger Bobby Adekanye in Russia on Tuesday.
The incident is believed to have happened when the 18-year-old came on as a second-half substitute in a UEFA Youth League game against Spartak Moscow.
Nigerian-born Adekanye was allegedly subjected to chants and gestures as he entered the game, which preceded the senior side's 1-1 draw in their Champions League Group E clash against Spartak Moscow.
According to BBC Sport, UEFA is awaiting additional reports regarding the incident.
Spartak also face three charges for incidents involving fans during their game with Liverpool, relating to illicit banners and chants, setting off fireworks and blocking stairways.
These charges will be dealt with by UEFA's control, ethics and disciplinary body on October 19.
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