The Marlins 40-man roster is currently at 40 players.
- Daniel Castano, Isan Díaz, Braxton Garrett, Monte Harrison, Jordan Holloway and Sixto Sánchez recalled from Jacksonville
Pitchers (22): Sandy Alcantara, Anthony Bass, Andrew Bellatti, Anthony Bender, Richard Bleier, Edward Cabrera, Paul Campbell, Daniel Castano, Dylan Floro, Braxton Garrett, Sean Guenther, Elieser Hernandez, Jordan Holloway, Pablo López, Jesús Luzardo, Luís Madero, Nick Neidert, Steven Okert, Zach Pop, Trevor Rogers, Sixto Sánchez, Zach Thompson
Position Players (16): Eddy Alvarez, Lewis Brinson, Jazz Chisholm Jr.