Liberatore didn't allow a run in 28 consecutive games from May 20 to July 22, breaking the previous Dodgers record of 23 games set by John Candelaria in 1991.
But the usage took its toll, and from July 20 to Aug. 19, he was on the disabled list with what the club described as left elbow inflammation.
His ERA, a microscopic 0.55 on July 22, jumped to 3.29 by early September and he made only seven appearances that month, the last coming Sept. 29 when he allowed two runs in one inning at San Diego. Liberatore made 14 appearances in May, 12 in June and 11 in July. He finished with a 3.38 ERA and 42 2/3 innings pitched.
Meanwhile, Wood has essentially moved into Liberatore's spot on the postseason roster as an added left-handed reliever behind Grant Dayton, although the club has not made that official.
Dr. Neal ElAttrache will perform the surgery on Liberatore.
Ken Gurnick has covered the Dodgers since 1989, and for MLB.com since 2001. This story was not subject to the approval of Major League Baseball or its clubs.