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The St. Louis Cardinals have acquired 2026 All-Star outfielder Robert Neustrom from the Oakland Athletics in exchange for infielder Jeremy Rivas and minor-league starting pitcher JonJon Vaughns.
Acquired by the Athletics as a minor-league Rule 5 draft pick from the Orioles in 2025, Neustrom debuted in the majors this season in impressive fashion hitting .271 with 19 homers and 59 RBIs en route to earning a position on the American League All-Star team.
Signed as an international free agent by the Cardinals in 2019, Rivas has spent most of the 2026 season at AAA Memphis with a pair of callups to the majors when injuries deemed it necessary.
For the Redbirds, Rivas played in 59 games/57 starts and batted .290 with six home runs and 29 RBIs.
In the majors, Rivas got into 14 games/10 starts and hit .158 with one home run and one RBIs.
Selected by the Cardinals in the 19th round of the 2023 draft, Vaughns has spent the 2026 season at High-A Peoria where he has pitched in three games/one start going 1-0 with a 4.00 ERA.