Rivera a catching option
Injuries have created a catching need for the Marlins.
Brett Hayes has a separated left shoulder, and on Friday, John Baker is undergoing Tommy John surgery.
To help address the ssituation, Mike Rivera, who has big league experience, has been signed to a Minor League contract. Rivera is at Triple-A New Orleans. He could join the Marlins at any time.
Brad Davis and Chris Hatcher are handling catching duties now for Florida.
— Joe Frisaro