Realmuto is out of the lineup for Wednesday's game against the Marlins.
Garrett Stubbs will step in behind the dish as a replacement for Realmuto, who went 1-for-8 with a home run and two RBI while starting in the first two games of the series against his former team. One of multiple veteran Phillies players who have underperformed this season, Realmuto owns a career-low .607 OPS over 185 plate appearances.