The final two moves are expected to be placing pitchers Jose Fernandez and Aaron Crow on the disabled list. Fernandez is recovering from Tommy John surgery and is expected back around midseason. Crow, meanwhile, is seeking a second opinion regarding his torn ulnar collateral ligament in his right elbow. He likely is headed for Tommy John surgery.
Valdespin and Solano were each informed a few days ago that they wouldn't be making the club. The two have started working out and playing exhibition games with Triple-A New Orleans at the Roger Dean Stadium complex in Jupiter, Fla. Valdespin plays infield, but is expected to play mostly in the outfield with the Zephyrs.
Also on Friday, outfielder Cole Gillespie accepted his assignment to New Orleans. But outfielder Tyler Colvin exercised his out clause, becoming a free agent.
Before the season gets underway, the Marlins are playing exhibitions on Friday at Class A Greensboro and on Saturday at Double-A Jacksonville.
Barring anything unforeseen by Sunday, the Marlins will carry 13 position players and 12 pitchers.
The projected batting order is:
1. Dee Gordon (2B)
2. Christian Yelich (LF)
3. Giancarlo Stanton (RF)
4. Michael Morse (1B)
5. Martin Prado (3B)
6. Marcell Ozuna (CF)
7. Jarrod Saltalamacchia (C)
8. Adeiny Hechavarria (SS).
The bench includes Jeff Mathis (catcher), Ichiro Suzuki (outfield), Jeff Baker (infield), Donovan Solano (infield) and Don Kelly (infield/outfield).
Henderson Alvarez is the Opening Day starter, and following will be Mat Latos, Tom Koehler, Dan Haren and Jarred Cosart.
In the bullpen are closer Steve Cishek, Mike Dunn, A.J. Ramos, Bryan Morris, Sam Dyson, David Phelps and Brad Hand.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter @JoeFrisaro. This story was not subject to the approval of Major League Baseball or its clubs.