Yu Darvish is headed back to the disabled list with right triceps tendinitis.
The club has yet to determine a timetable for Miller's return.
Marte is expected to start in center field for the Pirates on Saturday.
It's not yet clear just how long Holland will be out of commission.
He's the youngest American League player to do it, too.
The Dodgers' ace appears to be one successful simulated game away from his next start.
Prado was lifted from Friday's game after injuring his left leg while running out a ground ball.