White was optioned to Triple-A Oklahoma City on Thursday, Juan Toribio of MLB.com reports.
White gave up four runs in five innings to take the loss against the Cardinals on Wednesday, and he'll head back to the minors after Tony Gonsolin (shoulder) was reinstated from the 10-day injured list Thursday. Since Clayton Kershaw (forearm) is also expected to return early next week, the Dodgers no longer have a place in the rotation for White. However, he'll be a top option to rejoin the active roster if the team needs a spot starter.