In 2016, the San Francisco Giants only needed to use two catchers over the entire season. Buster Posey and Trevor Brown began the year on the opening day roster as the two backstops, and were the only guys to play behind the plate over the entire course of the season. They did add Tony Sanchez to the 40-man roster very late in the season, but he didn’t enter a game. The Giants were lucky enough to avoid injuries to their catchers and not need another one.
They won’t test that luck again in 2017.