Pfaadt (side) will make his Cactus League debut Wednesday against the Athletics, Alex Weiner of ArizonaSports.com reports.
The Diamondbacks have eased Pfaadt into things this spring after he had a side issue during the offseason. Pfaadt pitched in a backfields game last week and will progress to an official spring training contest Wednesday. The right-hander is expected to be ready to roll for the beginning of the regular season.