Syndergaard's scheduled start Monday has been postponed due to weather, Anthony DiComo of MLB.com reports.
Tuesday will now be a doubleheader between the Mets and Cardinals. Syndergaard is scheduled to pitch in Game 1, with Bartolo Colon pitching in the subsequent contest. The Mets will likely need to find a spot starter for Saturday while pushing the rotation back a day to fit Syndergarard in Sunday.