Prior to the 2020 season, Major League Baseball instituted a rule requiring all MLB teams to designate every player on the active roster as either a pitcher or a position player. Those designated as position players would have been unable to pitch unless it was extra innings, their team was ahead or trailing by more than six runs, or they had qualified as a two-way player.
Per the rule, a position player was able to qualify for two-way status if he had:
1) Pitched at least 20 Major League innings AND
2) Played at least 20 Major League games as a position player or designated hitter, with at least three plate appearances in each game, in either the current or previous MLB season.
As part of MLB's health and safety protocols amid the COVID-19 pandemic, this rule was not utilized during the 2020 and 2021 seasons.