The Marlins recalled White from Triple-A Jacksonville on Sunday.
White had been one of the top relievers at Jacksonville this season, accruing a 1.24 ERA and 1.00 WHIP while striking out 30 batters over 29 innings. Consistently finding the strike zone has been an issue for the right-hander throughout his minor-league career, however, and after posting a 14.3 percent walk rate this season, White may not be asked to handle a high-leverage role. The Marlins will be treating Sunday's series finale against the Mets as a bullpen game, so White could be called upon to cover an inning or two in relief following opener John King.