Astros to add prospects to 40-man roster ahead of Rule 5 draft

ARLINGTON — The Astros will add four players to their 40-man roster before Wednesday’s 7 p.m. deadline to protect them from selection in the Rule 5 Draft.

source https://www.chron.com/sports/astros/article/Astros-add-prospects-roster-Rule-5-draft-14849628.php