Stewart will not start Thursday against the Rockies, Andy McCullough of the Los Angeles Times reports.
Brett Anderson (finger) is slated to return Thursday, leaving Stewart's role uncertain. He may be the odd man out of the rotation, or he could end up getting the nod Friday over Jose De Leon. Stewart has fared well in his last three starts, giving up three runs over a combined 15 innings, but he does have a nine-run blowup on his record (at Coors Field). De Leon, meanwhile, tossed a quality start in his debut but failed to make it out of the fourth inning in his last outing.