Basallo exited Thursday's game with Double-A Bowie due to a lower body contusion, Jake Rill of MLB.com reports.
No details were provided regarding the injury, which comes shortly after Basallo was able to return from an ankle injury June 18 after a three-game absence. When healthy, he's had an impressive season at Bowie, hitting .281 with 11 homers and six stolen bases across 272 plate appearances as a 19-year-old.