The Milwaukee Brewers, along with all other MLB teams, are wearing the number 21 as a tribute to Roberto Clemente. This is part of the league-wide celebration of Roberto Clemente Day, which honors the Puerto Rican Hall of Famer's legacy on and off the baseball field. All players, managers, coaches, and umpires wear a "21" patch on their uniforms as a sign of respect. Additionally, players of Puerto Rican heritage, past Roberto Clemente Award recipients, and the nominees for the award can wear number 21 on their jerseys for the day. The tribute commemorates Clemente's humanitarian work and his exceptional baseball career, including exactly 3,000 career hits and his status as a 15-time All-Star and Hall of Famer.