Realmuto is not in the lineup for Friday's game against the Indians.
Realmuto's absence raises an eyebrow, as he owns an .884 OPS in September and the Phillies have a DH spot available while playing in an AL park. Realmuto has started all but two games this month, so it's possible he is simply getting a day off. Regardless, Andrew Knapp will handle the catching duties for the Phillies on Friday night.