Chris Schwinden has been demoted to Triple-A Buffalo, creating a void in the rotation for Tuesday's start in Philadelphia. The Mets have promoted utility player Vinny Rottino
The Mets did not immediately announce Tuesday's starter. Options would include Jeremy Hefner and Miguel Batista.
Schwinden had an 11.25 ERA in two starts.
Rottino provides a third catcher who also can play corner infield and outfield positions. He actually has not been asked to catch during the regular season this year with the Bisons. Rottino, 32, was hitting .317 with one homer and 14 RBIs in 27 Triple-A games.