Jose Fernandez allowed just one run over five innings Tuesday, taking a no-decision as the Marlins lost to the Phillies.
Marlins prospect left-hander Andrew Heaney allowed an unearned run on four hits and two walks while registering nine strikeouts over 4 1/3 innings for High-A Jupiter on Monday.
Logan Morrison (knee) went 2-for-5 with a pair of singles Monday in his first rehab game with High-A Jupiter.
Marlins manager Mike Redmond said he plans to use "everybody" at closer.
Alex Sanabia scattered seven hits while holding the Phillies to one run in 6 1/3 innings in a victory on Monday.
Marlins purchased the contract of 1B/OF Jordan Brown from Triple-A New Orleans.
Marlins placed OF Matt Diaz on the 15-day disabled list, retroactive to May 19, with a left knee contusion.
Ricky Nolasco whiffed 11 batters while holding the Diamondbacks to one run over eight frames in Sunday's 2-1 win.
Michael Dunn nailed down his second career save in Sunday's win over the Diamondbacks.
Steve Cishek was pulled from a save chance Sunday after allowing a two-out single and a walk.
Marcell Ozuna drove in the Marlins' only two runs with a two-RBI double in Sunday's win over the Diamondbacks.
Joe Mahoney (hamstring) will begin a rehab assignment with High-A Jupiter this week.
Logan Morrison (knee) is slated to begin a rehab assignment with High-A Jupiter on Monday.
Steve Cishek worked a perfect ninth inning in a non-save situation against the Diamondbacks on Saturday.
Tom Koehler allowed one run over six innings, but the Marlins lost to the Diamondbacks on Saturday.