Ahead of their clash with Roma, the super Swede said: "I have a tendon injury and it's bad. I do not want to talk about it, though, because all I want to do is concentrate on winning games for Inter. But I know I am risking a lot and may have to stop.
"Roma often beat us, but we must not fear them.
"I could play, I don't know yet. It's a bad injury."
Meanwhile, Ibrahimovic revealed he has made his peace with teammate Marco Materazzi.
"The defeat to Liverpool had nothing to do with Materazzi. I didn't see his fouls, Marco told me that they were never there and I believe him. It was the ref who was wrong."
Asked about staying with Inter, Ibra added: "If things go on like this, I could stay for life!"