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8/20/2014 2:33 A.M. ET

Greinke could miss start with tender elbow

LOS ANGELES -- Zack Greinke is only a "possibility" to make his scheduled start on Thursday, Dodgers manager Don Mattingly said after Tuesday night's 8-6 win over the Padres.

Greinke has been dealing with a tender elbow for the past three weeks, bypassing regular bullpen sessions to throw on flat ground, which puts less of a strain on the arm.

Mattingly would not elaborate on Greinke's condition or who might replace him, although the Dodgers have few options besides rookie Carlos Frias, who pitched four innings in relief of Dan Haren on Sunday.

"Nothing to talk about right now," Mattingly said. "We'll let you know more [Wednesday]."

Greinke previously said he's pitched through similar arm discomfort and theorized that the 20-game stretch without a day off that ended Sunday might have contributed to the issue.

Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.