'All the support he needs, he wants, ' he said.
Recalling the incident, Brewster told The Guardian: "I jumped to my feet and the ref came running over because obviously he realised something had been said".
"In Rhian's case, we have visited him at his club to discuss his concerns and understand his frustration at the perceived lack of action".
English FA has made representations to UEFA and Federation Internationale de Football Association regarding the racial abuse allegations.
"I don't think UEFA take this seriously", he added. They don't really care.
Anti-government protests erupt in Iran
The Revolutionary Guard, a hard-line paramilitary organization, has vast economic interests in the country. Out of a total Iranian population of 80 million, some 3.2 million are jobless, according to official data.
The Liverpool youngster says he also faced racial abuse during last year's U-17 European Championship in Ukraine.
"The day it happens, that night, my head won't be there. I just want to be left alone", he said.
"I'm thinking to myself: 'Well, I'm standing behind a banner but does it really stop them from saying it?'" UEFA's disciplinary regulations stipulate that any player found guilty of racist abuse should be banned for a minimum of 10 matches.
Brewster claimed Uefa need to take racism more seriously in a national newspaper interview he requested, leading to messages of support from the likes of Match of the Day host Gary Lineker, politician Ed Miliband and chart star Stormzy.
"I am really happy he is fearless enough, and he needed to be courageous, to do what he did because it is such an important thing", Klopp told The Guardian.
'I can't believe people still have these kind of thoughts in their mind.
"We needed a 17-year-old boy to shout out, to say it is still happening and it happens all the time, to say "I need help, we need help".