An appellate court in Chicago says transcripts of FBI wiretaps not played at Rod Blagojevich's corruption trials will remain sealed.

The 7th U.S. Court of Appeals is still mulling its decision on the imprisoned former Illinois governor's request to toss his convictions.

Appellate courts typically unseal documents submitted as part of an appeal. But prosecutors later asked that the transcripts submitted to the appeals court not entered into evidence at the trials remain under seal. Blagojevich's attorneys wanted them opened.

But in its order posted Tuesday, the court said that if it eventually agrees the trial judge erred by not admitting the unplayed wiretaps at trial, they will then be unsealed.

The court's expected to rule on the appeal soon.

Blagojevich is serving a 14-year sentence for multiple corruption convictions.