Diaz is out of the lineup for Sunday's game against the Astros.
Diaz will head to the bench for the third time in four games while the Rangers go with Kyle Higashioka behind the dish. Though he appeared to have supplanted Higashioka as the Rangers' preferred catcher while Danny Jansen (forearm) remains on the shelf, Diaz may have faded into a timeshare after going 3-for-19 (.158 average) with a 0:4 BB:K over his last six starts.