The team is trying to get Hermida a few more ABs while waiting on Ramirez to be game ready.
The Marlins probably won't add Hermida to their 25-man roster until Ramirez is deemed ready to return to the starting lineup in order to facilitate the transaction, one that could result in shortstop Robert Andino's return to Triple A Albuquerque (N.M.).
Don't expect to see either one on the roster until both are ready. The best guess at this point is Monday - if nothing changes.