Cosart was replaced with one out in the second against Colorado Springs at New Orleans. He gave up three runs in the inning.
Cosart went 1-4 with a 5.36 ERA in nine games, with eight starts, for Miami before being sent down. The Marlins placed him on the DL on May 18 when he initially was bothered by vertigo.
Cosart was optioned to New Orleans on July 5, a day after he gave up seven runs in 1 2/3 innings against the Cubs at Wrigley Field.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter @JoeFrisaro and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.