Jon Niese was placed on the 15-day disabled list, retroactive to March 21, the Mets announced.
Niese is expected to make his season debut on April 6.
Matt Harvey was placed on the 60-day DL, the team said.
The team officially selected Omar Quintanilla’s contract, confirming that he has made the Opening Day roster.
They re-assigned Eric Campbell, Anthony Seratelli and Taylor Teagarden.