The 26-year-old Ghana international has been linked with a move to Sunderland, after failing to stay a regular in the starting-eleven at the San Siro.
“He [Muntari] has made himself available to leave as long as a team wants him and is interested in him,” Inter technical director Marco Branca told Sky Italia.
“He is a lad who is close to us, he is a good person, even though he expresses opinions of someone who wants to play.”