After he was held out of the lineup for Wednesday's 5-2 win over the Nationals due to a bruised left knee, the star backstop is contending with a COVID-19-related issue a day later. At this point, the Phillies haven't provided any details regarding whether Realmuto was placed on the list due to a positive test, a close-contact situation or adverse effects to a vaccine shot, making it difficult to predict when he might be able to return to the lineup.