Everton are investigating alleged racist behaviour by a supporter during Sunday's home draw with Tottenham.
The match was overshadowed by Everton's Andre Gomes suffering a horrific ankle injury after a tackle by Son Heung-min.
Cenk Tosun scored a late equaliser after Dele Alli had put Spurs in front.
An Everton Fan Services statement said: "Everton strongly condemns any form of racism. Any such behaviour has no place within our stadium, our club, our community or our game."
Portugal midfielder Gomes, 26, will have surgery on Monday after suffering a fracture dislocation to his right ankle.
A distressed Son was sent off for the 79-minute challenge.