Kick It Out have condemned Bernardo Silva for a tweet posted in reference to team-mate Benjamin Mendy on Sunday.
Silva tweeted a photo believed to be of Mendy as a child alongside a picture of the logo of a Spanish confectionery company Conguitos, with the caption "Guess who?".
He later deleted the photo and posted: "Can't even joke with a friend these days... You Guys..."
A statement from Kick It Out said: "We are extremely disappointed to see the tweet posted by Bernardo Silva, which has since been deleted.
"Racist stereotypes are never acceptable as 'banter', and we're shocked that someone who is a role model to millions has failed to understand the discriminatory nature of his post.
"The FA have been notified and we believe that retrospective action should be taken, including mandatory education - which is vital to challenge offensive behaviour such as this."