Liverpool have urged football's governing bodies to take "robust" action to tackle discrimination in the game after a racism allegation made by young striker Rhian Brewster was dropped due to insufficient evidence.
No action will be taken against Spartak Moscow's Leonid Mironov after Uefa could not prove he had used discriminatory language towards the England Under-17 World Cup winner in a Uefa Youth League match in December.
Mironov admitted swearing at Brewster during the game but - despite the Liverpool player's furious reaction on the pitch - no proof of racist comments was uncovered after five players from each side and the match official were interviewed, although Uefa conceded the allegation was made in good faith.
A club spokesman said: "In keeping with Rhian's stance, the club encourages football's governing bodies to facilitate the most robust processes possible to identify and tackle discrimination in the game at all ages."
Anti-discrimination organisation Kick It Out said it was "deeply disappointed" with Uefa's findings.
Last month, Reds first-team forward Roberto Firmino saw the case against him dropped because there was no evidence to corroborate Everton defender Mason Holgate's allegations of a racist remark.