The young England star proved his exceptional talents in the U-17 World Cup winning England side in India this summer, scoring a hat-trick in the semi-final on his way to picking up the Golden Boot and Bronze Ball tournament awards.
According to the Liverpool Echo, when asked about the matter, youth team boss and club legend Steven Gerrard said, "It's difficult for me to comment on it right now. It's something that the club will look into and deal with.
"I'd rather talk about Rhian Brewster's performance. I don't want to take any gloss off that because he was superb.
“The only thing that was missing from his performance was a goal. He held the ball up so well and put in a shift for us."
In response to reports of racist abuse towards @LFC Under-19 striker Rhian Brewster by a Spartak Moscow player during today’s @UEFA Youth League fixture, we have released the following statement: https://t.co/2rbBe4GAcc pic.twitter.com/FG2cLenLZt— Kick It Out (@kickitout) December 6, 2017
This is not the first time Liverpool youth players have suffered racial abuse at the hands of Spartak Moscow players, as a similar attack occurred in the reverse fixture back in September.
The abuse in Moscow that time was also reported, although UEFA responded lightly by only partially closing off 500 seats of the Spartak Moscow academy stadium.
Brewster, 17, alerted referee Mohammed Al-Hakim to the incident during the game. The teenager was visibly angered following a conversation with a Spartak defender, and had to be restrained by fellow players and coaching staff.
Gerrard took over as U-18 manager in April, following his initial return to the club as an academy coach back in January.
Liverpool will now have to wait to see how UEFA respond, with hopes that Spartak will face tougher punishment than they did in September.