All of the defeated Europa League play-off sides will still have a chance to make the group stages as UEFA need a replacement for Fenerbahce.
The Turkish outfit have been banned from competing in European competition for two years after being found guilty of match fixing.
The replacement draw, which could include Udinese or Fiorentina, will take place on Friday morning before the main procedure.
The Viola entertain Grasshopper this evening with a 2-1 first leg lead. Udinese, meanwhile, lost their opening fixture 3-1 to Liberec in Italy last week.
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