The 21-year-old infielder from the Dominican Republic was in the the Padres’ 2021 big league spring training camp as a non-roster invitee. He batted .219 with two home runs in 22 spring training games.
Rosario saw limited action with the San Antonio Missions in 2018, playing in three games in the Double-A Texas League. He spent most of 2018 in the Class-A Cal League and batted .239 with nine home runs in 121 games.
Rosario played in the Class-A Cal League again in 2019, batting .278 with seven home runs, eight triples and 25 doubles in 122 games.
