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Gilmartin, 25, appeared in 50 games during his rookie season, going 3-2 with a 2.67 ERA and striking out 54 batters in 57 1/3 innings. Although he is not a classic lefty specialist, Gilmartin may be the Mets' only left-handed option in some postseason games. Jon Niese had a death in his family Friday night, and he may be unavailable for one or more NLCS games.
Lefty starter Steven Matz will also be available out of the bullpen, though only for Games 1 and 2.
Goeddel's only NLDS appearance occurred when he faced four batters in the ninth inning of the Mets' 13-7 win over the Dodgers in Game 3 of the Division Series, retiring none of them. One of the four hits he allowed was a Howie Kendrick three-run homer.
Matt Reynolds, who replaced shortstop Ruben Tejada on the roster after Tejada was injured in NLDS Game 2, remained on the roster. Fellow infielder Juan Uribe, who has been nursing a chest injury since late September, remained off it. As of Friday, Uribe had yet to perform any baseball activities in his rehab program, making it unlikely that he will appear at all for the Mets this postseason.
Anthony DiComo is a reporter for MLB.com. Follow him on Twitter @AnthonyDiComo and Facebook, and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.