Adam Conley opened the season in the Marlins’ starting rotation.
But poor results over the first five weeks of the regular season landed Conley in the minors.
Marlins manager Don Mattingly announced Sunday that Conley will start Tuesday night’s game against the Phillies at Marlins Park in what will be his first major-league outing since May 8.
Conley went 2-3 with a 7.53 ERA in six starts and one relief appearance before being sent to New Orleans.
Since then, he is 3-3 with a 5.49 ERA in 12 starts in the minors.