The official squad numbers for the 2016/17 have been announced by Barcelona on Thursday, and you can now buy the new Paco Alcácer shirt since the newest Blaugrana signing has been given a number as well:
What's interesting is that Barça and Valencia basically traded Alcácer and Munir, and the two players have gotten each other's numbers in their new clubs. Munir will get Paco's number 9 for his season loan, and Alcácer will wear Munir's old #17 shirt for the Catalan giants.
Number Seventeen is not exactly a historic shirt at Barça.