The Mets added some depth to their bullpen on Monday and recalled right-handed reliever Drew Gagnon and optioned infielder Luis Guillorme to Triple-A Syracuse.
Gagnon, a starter in Triple-A, is 1-0 and has allowed one earned run in 10.2 innings -- a 0.82 ERA -- and nine hits in two starts this season.
He gives the Mets a long-man in the bullpen after Corey Oswalt was exhausted on Saturday entering in relief of Jason Vargas, who managed just 1/3 of an inning. Oswalt was optioned back to Triple-A the following day for Paul Sewald.
The move leaves the Mets without a backup shortstop but Todd Frazier is expected to be activated from the injured list relatively soon and would provide them with another infielder.
Frazier, 33, actually played shortstop in a rehab game last week and was expected to replace Guillorme's spot on the roster once healthy.
Jeff McNeil is likely the team's emergency shortstop.