Ryan Mountcastle is not in the starting lineup for the series finale against the Pirates on Thursday

Samuel Basallo will shift to DH with Alex Jackson starting behind the plate. Mountcastle has hit .282/.325/.409 in 28 games since coming off the IL with three home runs, 16 RBI, and two steals. He should be back in the starting lineup on Friday and remains the favorite to start at first base for the Orioles in 2026.