Turkey's Football Federation has withdrawn national champions Fenerbahce from the Champions League because of an ongoing match-fixing investigation.
Fenerbahce were crowned league champions last term, pipping Trabzonspor to the Super Lig title with a dramatic 4-3 win at Sivasspor on the final day.
On Thursday the Turkish side were due to join 32 elite European clubs in the draw for the Champions League group stage being held in Monaco at 1645 BST - but Uefa has announced league runners-up Trabzonspor will take their place.
Trabzonspor had already been eliminated from this season's Champions League in the qualifying rounds.
The decision means that Trabzonspor's scheduled Europa League qualifier against Athletic Bilbao on Friday has been cancelled, with the Spanish club progressing automatically.