Fortes had his contract selected by the Marlins on Friday, Christina De Nicola of MLB.com reports.
Jorge Alfaro (calf) landed on the injured list Friday, and Miami opted to promote both Fortes and Payton Henry from Triple-A Jacksonville. There's now four catchers on the active roster, with Alex Jackson and Sandy Leon rounding out the group. Playing time may be difficult to predict given all the options, but Henry will receive the start Friday versus Pittsburgh.