Simpson was recalled Tuesday from Triple-A Jacksonville, Jordan McPherson of the Miami Herald reports.

EDGE Analysis

Simpson has struck out 62 batters in 36.1 innings this season in the minors, but all of those whiffs have come alongside a 4.71 ERA and 1.54 WHIP. The 26-year-old left-hander will be making his major-league debut whenever he gets into a game for the Marlins.