Major League Baseball will not require Minor League players to be vaccinated against COVID-19 to play in 2022, according to a memo sent to teams this week.

However, the league will mandate on-field staff working with players be "up-to-date" on vaccinations.

The league had considered mandating vaccinations across the Minor Leagues, which it could have done without players' consent because their working conditions are not governed by a collective bargaining agreement like Major Leaguers.