Diaz left Monday's game against Kansas City in the ninth inning after fouling a ball off his face, FOX Sports Midwest reports.
Diaz was in the middle of his fourth at-bat when the accident occurred. Fortunately, the rookie was able to walk off the field under his own power and should be considered day-to-day. If Diaz is forced to miss time, Greg Garcia could be the benefactor of increased playing time at shortstop.