In theory, the Tampa Bay Rays would not need a catcher. They had signed Wilson Ramos to a two year deal, with the idea that he would give that position a presence in the lineup that they never had in their history. Paired with Evan Longoria, Ramos could help provide more punch to the middle of the Rays lineup.
The problem with that theory is that Ramos tore his ACL last year and is expected to be sidelined until sometime in May or June. Even then, there is no guarantee that Ramos will be ready to get behind the plate once he comes back, as he may need to spend time at either first base or as the designated hitter.