Alonzo Richardson is a former farmhand from the Cleveland Guardians organization. The 23-year-old was a two-way star at Helix High School in La Mesa, California. Richardson played shortstop and pitched; Perfect Game would rank Richardson as the 13th best shortstop prospect in the state. After the 2020 draft was shortened to five-rounds, the Guardians would sign the youngster and convert him to a pitcher only. 

Richardson spent five seasons in the Cleveland organization going from starter to reliever in 2025. Last year, the right-hander pitched all 27 games in relief from High-A to Triple-A and had a 5.32 ERA with 47 strikeouts in 67.2 innings. In his time in the minor leagues he pitched in 103 games, 62 were starts, worked 407 innings, had a 4.82 ERA, 289 strikeouts and 179 walks.