Bernardo Silva could be facing up to a six-game ban dished out by the Football Association.
It comes after the Manchester City midfielder was charged by the authority over "insulting and/or improper" activity relating to a tweet he sent in reference to team-mate Benjamin Mendy.
Silva compared Mendy to the character on a packet of Conguitos - a sweet brand available in Spain and Portugal.
The charge states: "It is alleged that the Manchester City player’s activity breaches FA Rule E3(1) as it was insulting and/or improper and/or brought the game into disrepute.
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"It is further alleged that the activity constitutes an 'Aggravated Breach', which is defined in FA Rule E3(2), as it included reference, whether expressed or implied, to race and/or colour and/or ethnic origin."
The Portugal playmaker has until October 9 to respond to the charges.
Man City are currently second in the Premier League table, five points behind Liverpool.
