Reports over the summer linked Manchester City with a €50 million [£40m] bid for the Italy international, but the 52-year-old remains open to offers for the player in the future.
The midfielder pledged his future to the Giallorossi in the summer, rejecting a move to the Etihad, but a move has looked to be reignited recently as De Rossi has struggled to hold down a place in the Roma side.
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“If we were to get another offer we would listen again. But we could easily decline again.”
He then went on to give his thoughts on the Giallorossi's upcoming derby against Lazio on Sunday and was quick to state the magnitude of the contest.
"It is a game like no other,” said Baldini. “It completely takes over the city and holds an importance like nothing else. It is completely out of the ordinary.”
The capital club currently sit in sixth place in Serie A, with 17 points from their first 11 games.