Fermin is out of the lineup for Wednesday's game against the Mets.
Fermin had started behind the plate in three of the previous four contests but will cede catching duties to Luis Campusano for the series finale at Citi Field. The two backstops are likely to be used in a near-even timeshare moving forward, with Fermin's defensive prowess allowing him to retain playing time despite Campusano having been the far more productive hitter.