With the preseason coming to a close, after the game against Sampdoria, Barcelona's squad appears to have taken shape, and with the squad roles looking more defined, I'm going to try and break them down for you.
Claudio Bravo: After a solid summer with Chilé, Bravo looks in good shape, and despite having conceded in the preseason, at an alarming rate, he will be the automatic starter, after the injury to MAtS.
Marc Andre ter Stegen and Jordi Masip: Although MAtS looked in pole position to start as Barça's number 1, his injury sets him back a few steps, which means that he will probably wait for Bravo to lose some of his form; expect him to play La Liga at some point, during the course of the season.