The Pittsburgh Pirates entered the season with Francisco Cervelli and Elias Diaz as their starting catchers. There was reason for a lot of optimism as these two made up one of the best catching duos in the National League last season with both their hitting and defense.
Instead, the Pittsburgh Pirates saw Cervelli spend more time on the injured list than behind the plate and Elias Diaz regressed big time. This led to Triple-A catcher Jacob Stallings getting more playing time. At the beginning of the year he was designated for assignment but he luckily cleared waivers.