The Padres optioned Campusano to Triple-A El Paso on Wednesday.
Since the beginning of August, Campusano has slashed .163/.268/.224 with three RBI across 56 plate appearances. He'll now head back to the minors in order to get back on track, officially moving Elias Diaz into the No. 2 catcher spot behind Kyle Higashioka. Brandon Lockridge was recalled from Triple-A in a corresponding move.