The 25-year-old has failed to impress at Eastlands this season and has been publicly criticised by manager Roberto Mancini.
Nasri also clashed with a journalist during Euro 2012 which saw him banned by the French Football Federation for three games.
His agent Jean-Pierre Bernes told L’Equipe: “We can not be condemned forever because you had a clash with a journalist.
“Anyway I am absolutely not worried. Sami’s value has not vanished, everyone knows it.
“Look at Ribery, two years ago everyone wanted to throw him away. Nowadays Franck is the French team and Bayern star because he worked hard and that is the way which Samir has to follow, he knows it and he will fight.”
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