Lazio President Claudio Lotito has a message for Roma fans. “They may mock after the derby, but it'll come back to bite them.”
The Giallorossi have won the last five consecutive Derby della Capitale games, so hold bragging rights in the city.
“The defeat was not only tied to our mistakes, but also other factors,” said Lotito on Lazio Style Radio.
“We are aware that we must pull out all the stops to ensure this doesn't happen again and the fans can go back to celebrating.
“Lazio are the first team in the city and we have to reiterate that. Roma were ‘born' 27 years later and we should confirm that supremacy on the field.”
The Biancocelesti are currently in fifth place, two points in front of their city rivals, and both are racing for a Champions League spot.
“Now the Romanisti may mock, but if we finish ahead of them and achieve objectives that they do not, then everything they've said recently will come back to bite them.”
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