Luis Suarez says he is "upset" about being accused of racially abusing Manchester United defender Patrice Evra during Saturday's Premier League match.
The Liverpool striker wrote on Twitter: "I can only say that I have always respected and respect everybody.
"We are all the same. I go to the field with the maximum illusion of a little child who enjoys what he does, not to create conflicts."
The Football Association has said that it will investigate Evra's claims.
The United defender alleges the incident took place during the 1-1 draw at Anfield.
A Liverpool spokesman earlier told the Press Association that Suarez "categorically denied" the allegation.
An FA statement read: "Referee Andre Marriner was made aware of an allegation at the end of the fixture and has reported this to the FA.
"The FA will now begin making enquiries into the matter."
Evra was quoted as telling French TV station Canal Plus: "There are cameras, you can see him [Suarez] say a certain word to me at least 10 times."