Severino will start the second game of Monday's doubleheader versus Atlanta, if necessary, Anthony DiComo of MLB.com reports.
Severino will be set to pitch in the nightcap Monday if New York drops the opener. The Mets need to win one of the two contests in order to secure a spot in the Wild Card Round. Tylor Megill will start the matinee, and if New York wins, Severino will shift his focus to getting ready for the postseason.