The Mets (14-11) and the rest of the National League East were off on Monday.
The Mets open a two-game set on Tuesday in Philadelphia at 7:05 p.m.
Tuesday’s game is the first of a nine-game road-trip that will also take the Mets to Colorado and Miami.
Jon Niese (1-2, 2.45 ERA) gets the start for the Mets, opposed by Cole Hamels (0-1, 3.00 ERA) for Philadelphia.
Later in the day, Rafael Montero makes his sixth start of the season for Triple-A Las Vegas.