Diaz exited Wednesday's game against the Marlins with an apparent injury, Anthony DiComo of MLB.com reports.
The right-hander entered during the eighth inning with the bases loaded and one out, and he had a strikeout and gave up a single and a walk before being lifted during the middle of an at-bat. It's unclear what type of injury Diaz was dealing with, and he should be considered day-to-day until more information is available.