Midfielder Appiah was linked with a move to Portsmouth from Fenerbahce last week, but could now be available on a free transfer.
"Now I am a free agent," he is reported to have told the Ghana FA website.. "A few issues happened between me and the club so I no longer play for them.
"Those stories about me and Brescia are not true. My personal trainer works with Brescia and I did a lot of work with him there during the off season so maybe that is where the rumours are from.
"But there a few offers I am studying even though I am not in a hurry. I want to make the right choice. At the end of it all the most important thing is that wherever I end up, I will give it my absolute all," he added.