Barcelona president Josep Maria Bartomeu has slammed Arthur for deciding against returning to compete in Barcelona's remaining Champions League campaign.
Quique Setien's side face Napoli on August 8 in the second leg of their last-16 tie with their first match in Italy ending 1-1.
While the Catalans will back themselves to progress at home, they'll have to do so without Arthur, who has decided he won't play for Barcelona again after sealing a move to Juventus.
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Arthur's move to Turin was done with the assumption he would see out the season with Setien's side, but the midfielder has opted not to return to Spain after being granted leave following the end of the La Liga season.