Buehler has been optioned to High-A Rancho Cucamonga, Ken Gurnick of MLB.com reports.
Buehler looked like he was rushed back into the lineup before he was ready Thursday, when he allowed five runs in one inning of work against the Cubs. The plan will likely be for Buehler to get stretched out at Rancho Cucamonga, and after getting his pitch count back to where it needs to be -- assuming he performs as expected -- he can come back to the majors. Buehler will need to spend at least 10 days in the minors, so expect a return in mid-July. Expect a corresponding move to be announced before Saturday night's game.