The postponements are piling up for the St. Louis Cardinals. Major League Baseball announced Sunday evening that "In light of the most recent positive test results, MLB and the Club believe it is prudent to conduct additional testing while players and staff are quarantined before the team returns to play."

Major League Baseball's news release is below:

Major League Baseball announced today that the upcoming three-game series between the St. Louis Cardinals and the Pittsburgh Pirates, scheduled for Monday through Wednesday at Busch Stadium in St. Louis, has been postponed. In light of the most recent positive test results, MLB and the Club believe it is prudent to conduct additional testing while players and staff are quarantined before the team returns to play. More information regarding the Cardinals’ resumption of play will be announced later in the week.