why are astros wearing 21

The Houston Astros players are wearing number 21 to honor Roberto Clemente on Roberto Clemente Day, which is celebrated annually in Major League Baseball. Roberto Clemente, a legendary Hall of Famer and humanitarian, wore number 21 throughout his career. The day commemorates his life, achievements, and legacy both on and off the field, especially his efforts in fighting racism and his ultimate sacrifice while delivering aid to earthquake victims in Nicaragua in 1972. On this special day, Astros players, including Carlos Correa who switched from his usual number 1 to 21, and others including Puerto Rican players and several teammates, wear number 21 as a tribute. This includes the manager Joe Espada and coaches, alongside players like Jose Altuve and Yordan Alvarez, even if not Puerto Rican. MLB also allows players and personnel to wear number 21 and patches in honor of Clemente's legacy during this tribute across the league. Thus, the Astros wearing number 21 is part of a broader MLB observance that celebrates Clemente's humanitarian impact and his influential role in baseball history, especially recognized during Hispanic Heritage Month.