LONDON, June 6 (Xinhua) -- Brazil and Liverpool striker Roberto Firmino has hit back at Real Madrid defender Sergio Ramos for the Spain international's sarcastic response to questions about his actions in last month's UEFA Champions League final.

Real Madrid secured their record-extending 13th Champions League/European Cup title by defeating the English club 3-1 at Kiev's NSC Olimpiyskiy Stadium.

However the result was marred by injuries to Liverpool duo Mohamed Salah and Loris Karius, both of which resulted from clashes with Ramos.

In defending himself against accusations of dirty play this week, Ramos said he was "just missing Firmino saying that he got a cold because a drop of my sweat landed on him."

Speaking on Wednesday to reporters in London, where Brazil are taking part in a pre-World Cup training camp, Firmino said: "I think he (Ramos) is right because his team are the champions. But I think he was being an idiot."

Egypt forward Salah suffered a shoulder problem when he crashed to the ground after being held in an arm lock by Ramos while Karius was concussed in a collision with the Real Madrid No. 4.

A medical report this week found that Karius's injury was likely to have caused subsequent mistakes by the goalkeeper which led to two Real Madrid goals.