With only one lefty arm in their bullpen, and that belonging to specialist Randy Choate, the Marlins are recalling Mike Dunn from Triple A New Orleans. Dunn was demoted on April 29 and has spent the requisite 10 days in the minors.
They're also calling up outfielder Kevin Mattison from New Orleans to re-balance the roster with 13 position players.
The Marlins have not yet made an official announcement, but both players were in transit to Miami from New Orleans and are expected to join the team Friday when it opens a three-game series against the Mets. Right-handed relievers Chris Hatcher and Sandy Rosario are being optioned back to Triple A.
Mattison, 26, is a left-handed hitting outfielder and Fort Lauderdale native. He is hitting .250 with three home runs this season at NOLA.
In his four relief outings covering 4 1/3 innings since joining the Zephyrs, Dunn has allowed six runs on six hits and six walks while stiking out five. In his most recent outing on Tuesday, though, he went 1 2/3 without allowing a run or a hit and walking just one.