Buehler (ribs) will throw another bullpen session Thursday, David Vassegh of AM 570 LA Sports reports.
Buehler completed his first bullpen session Sunday and had a pain-free session Tuesday as he works his way back from a right rib microfracture. There remains no official timeline for the young right-hander's return, but manager Dave Roberts indicated the team could briefly operate with a six-man starting rotation once he is activated, Ken Gurnick of MLB.com reports.