The Tampa Bay Rays currently have several players on their 40-man roster capable of playing first base.
However, the majority of the projected playing time for the upcoming season is currently slated to be given to the duo of Yandy Diaz and Ji-Man Choi. Is that the end of the story? Not if the Rays continue emphasizing positional versatility on the roster.
Mike Brosseau can play the position when called upon, as can Yoshi Tsutsugo, who played first base at times during his career in Japan. Then there are players waiting in the wings for their opportunities, such as Kevin Padlo, finally healthy after dealing with an unspecified illness last Spring.