De Rossi is being linked with Chelsea.
"I won't permit myself to give him advice," said Montolivo.
"I don't know about the situation in Rome or about the atmosphere in the Giallorosso changing room.
"All I can say is that Daniele is and remains one of the strongest midfielders in the world. He's been his normal self over the last few days on international duty.
"Is he in a similar situation to mine last year? No, not really, seeing as I was at the end of my contract with Fiorentina."