An offensive tweet posted after the Everton and Tottenham match is being investigated by police.
A Merseyside Police spokesman said the force received a report of the Twitter post following the match on Sunday.
The spokesman said: "Merseyside Police will not tolerate hate crime in any form and is working to identify and bring to justice anyone found responsible for committing a hate crime."
The Liverpool Echo reported that the post used racist language to describe Tottenham player Son Heung-Min.
The South Korean player was sent off during the match at Goodison Park after a challenge on Everton midfielder Andre Gomes.
Gomes, 26, has since undergone surgery on a fracture dislocation to his right ankle.