Though the Mets refuse to designate a regular closer, recently converted starter to reliever Jenrry Mejia appears to be in line to take over the role.

"We'd love to have somebody who can emerge in that role who can be a fixture for some period of time, not just this season but perhaps longer than that," general manager Sandy Alderson said last night. "I don't think we're there yet."

Whether they get there appears on Mejia's ability to pitch on consecutive days -- a requirement for any potential closer. The Mets intend to give him the opportunity.

"I don't know how long it's going to take us to build up Jenrry to be able to be perhaps that guy," manager Terry Collins said. Mejia pitched a scoreless ninth Thursday night.

For now, Collins said he will determine a closer day-to-day. Jeurys Familia and Jose Valverde may also get chances.

As part of an ongoing shake-up of the pitching staff, the Mets outrighted closer Kyle Farnsworth, who opted for free agency. To replace him, the Mets recalled Josh Edgin from Triple-A Las Vegas, giving Collins a second lefthander.

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Edgin posted a 4.97 ERA in the minors.

D'Arnaud on the DL

Catcher Travis d'Arnaud was placed on the 7-day disabled list for concussions, retroactive to Wednesday. He was replaced on the roster by Juan Centeno, who was hitting .273 at Triple-A Las Vegas.

D'Arnaud was hit in the helmet with an Alfonso Soriano backswing Tuesday night.

Said Alderson: "He's still feeling the effects."

DeGrom ends schneid

Mets pitchers went 0-for-64 to start the season until rookie Jacob deGrom ended the streak Thursday night. In his first at-bat in his big-league debut, deGrom singled to left-centerfield.