Robert Andino will miss 3-4 weeks after an MRI on Monday revealed a left shoulder sprain.
Andino suffered the injury when he dove for a ball during Sunday's game. He's expected to be placed on the disabled list Tuesday while Zach Britton will take his place on the active roster. Ryan Flaherty figures to fill in at second base for now.
Orioles are still in 2nd place in the East but have now lost their two starting 2B. Roberts hurt his hip earlier and now Andino hurt his shoulder.