Per Jayson Stark, Major League Baseball has officially alerted its teams that no more than 13 pitchers can be stowed on a roster at one time. In the event of a game postponement and subsequent doubleheader, however, teams will be allowed to call up a 27th man, which can be a 14th pitcher. This new rule particularly affects the Mariners, a team that’s historically maintained large bullpens in the past and quite possibly would have strongly considered a nine-man ‘pen for the 2020 season.
Seattle will now likely enter the year with a bullpen unit of eight as they’ve done in years past.