Real Madrid face an anxious wait to see whether Marcelo will be available for the Champions League semi-final second leg against Chelsea next Wednesday.
As part of random selection, Marcelo has been summoned to work at a polling station in the Spanish capital for the Madrid Assembly elections, which are taking place next week.
Election day is May 4 and Real are set to fly to London ahead of the second leg at Stamford Bridge a day later.
The Spanish media report that Real have filed an appeal to get the Brazilian relieved of his duties but add that it isn't a simple process.
El Mundo add, though, that so far Real haven't been granted an exemption for the 32-year-old.