In a lengthy statement the Uruguayan Football Players' Association went further, accusing the English FA themselves of racism for not acknowledging the context in which the post was sent.
Manchester United dominated for long periods of their quarter-final at Goodison Park, but it took until the 88th minute before Edinson Cavani broke the deadlock.
Edinson Cavani has been charged with misconduct by the Football Association for a now-deleted social media post containing a Spanish phrase that is offensive in some contexts.
Ole Gunnar Solskjaer said Edinson Cavani will not be rushed back for Thursday's Premier League clash with bottom side Sheffield United.
Edinson Cavani and Anthony Martial picked up "minor niggles" during Manchester United's 3-1 win against West Ham.
Edinson Cavani said that he did not want to cause offence to anyone and that he is "completely opposed to racism" in a statement.
Edinson Cavani is to be investigated by the Football Association over a social media post he subsequently deleted.
Edinson Cavani and Bruno Fernandes scored for Manchester United, who defeated Southampton in the Premier League.
Manchester United came back from two goals down to beat Southampton 2-3 at the St. Mary's stadium.
Uruguay striker Cavani almost scored with his first touch after coming off the bench in the second half, but Manchester United were unable to break down Chelsea's well-drilled defence.
Edinson Cavani, 33, is Paris Saint-Germain's all-time top scorer, scoring 200 goals in seven seasons at the Parc des Princes.
The coronavirus crisis has left Paris Saint-Germain apparently weakened both on the field and off it.
Thiago Silva and Edinson Cavani have played a major role in establishing PSG as the unrivalled force in French football.
Players like Manchester City's David Silva, Willian at Chelsea, or PSG's Thiago Silva and Edinson Cavani, will be free to leave on July 1 even if the season has not been completed.
PSG beat Bordeaux 4-3 on Sunday, but their victory was marred by Neymar's late sending-off.
Paris Saint-Germain were the beneficiaries of possibly one of the most comical own goals ever seen in professional football.
Edinson Cavani's header eight minutes from time from Jonathan Rodriguez's cross propelled Uruguay above Chile
Edinson Cavani has scored 17 times in the French league and twice in the Champions League this season.