Lazio boss Stefano Pioli blasted AS Roma rival Rudi Garcia after last night's derby defeat.
Garcia had accused Lazio of "crying" to get decisions go their way.
Pioli snapped: "I was very happy for foreign Coaches coming into Serie A, as I thought we could learn from them in terms of mentality and sporting culture.
"But I see when they come here, they change quickly and become even worse than us. What Garcia said, that we were whiners, was completely unnecessary.
"It was not right, not fair and not professional."