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03/06/2013 11:51 AM ET

Mejia expected back in camp Thursday

PORT ST. LUCIE, Fla. -- Right-hander Jenrry Mejia planned to spend a second consecutive night in New York on Wednesday, after doctors there examined him for a medical issue unrelated to his throwing arm. Mejia is due back in Mets camp on Thursday.

The Mets have yet to offer an official diagnosis for Mejia's condition, nor a timeline for his return to the mound.

This has been a difficult camp for Mejia, who is slated to open the season in Triple-A Las Vegas' rotation. After the right-hander's arrival was delayed more than a week due to a visa issue in the Dominican Republic, he gave up five runs in an inning during his only Grapefruit League appearance on Feb. 26.

Anthony DiComo is a reporter for MLB.com. Follow him on Twitter @AnthonyDicomo. This story was not subject to the approval of Major League Baseball or its clubs.