The Mets optioned Plummer to Triple-A Syracuse on Tuesday, Anthony DiComo of MLB.com reports.
EDGE Analysis
He'll be swapped off the 28-man active roster for outfielder Brandon Nimmo, who was activated from the COVID-19 injured list after clearing MLB's testing protocols shortly before the start of Tuesday's doubleheader with the Giants. During his three-game stay with the big club, Plummer logged just one plate appearance.