The striker failed to get a move away over the summer and has since been frozen out by coach Frank de Boer.
“I'm disappointed, but there are four of us so I'm not alone," the 26-year-old told Premium Sport.
“We hope that we'll get past the group and then other players can be added to try and win the Europa League.
“A transfer? I wasn't close to Milan, while with Fiorentina there was contact between the two clubs.
“In the end they didn't sell me, and I want to stay at Inter and play because I know I can play."