Castro is out of the lineup for Wednesday's game against the Mets.
Castro will exit the starting nine for the first time since July 10, breaking a streak of 13 consecutive starts. The versatile 27-year-old has picked up 10-plus starts at five different positions this season, but he's been seeing most of his action at second base of late following Edouard Julien's demotion to Triple-A St. Paul last week.