Pfaadt was removed from Saturday's game against the Padres after being struck in the foot by a comebacker in the fifth inning, Nick Piecoro of The Arizona Republic reports.
Luis Arraez hit a 98-mph comebacker at Pfaadt that ended up hitting the 25-year-old pitcher in the left foot/ankle area. Pfaadt allowed one run on seven hits and no walks with six strikeouts over 4.1 innings prior to exiting. The Diamondbacks will likely send Pfaadt in for imaging.