why are the brewers wearing number 21 today

The Milwaukee Brewers are wearing number 21 today to honor Roberto Clemente as part of Major League Baseball's celebration of Roberto Clemente Day. On this day, all MLB players, managers, coaches, and umpires wear a "21" patch on their uniforms to commemorate Clemente's legacy. Additionally, players of Puerto Rican heritage, past Roberto Clemente Award recipients, and each club's 2025 Clemente Award nominee have the option to wear number 21. The Brewers' nominee for the Roberto Clemente Award in 2025 is Sal Frelick, the team's right fielder, which likely explains the Brewers wearing number 21 today in his and Clemente's honor.