Gorzelanny has been sidelined since exiting a relief outing on Sept. 2 when he could not get his shoulder loose. It was his first appearance out of the bullpen following a stretch of nine starts, during which the Brewers evaluated whether Gorzelanny might fit into the rotation next season.
Manager Ron Roenicke said Gorzelanny felt lingering discomfort during a throwing session on Tuesday afternoon at Turner Field.
The 31-year-old was 3-6 with a 3.90 ERA in a debut season with the Brewers that included 33 relief appearances and 10 starts. As a reliever, he posted a solid 2.70 ERA and a .171 opponents' batting average. He is signed for next season at a $2.8 million base salary.
Adam McCalvy is a reporter for MLB.com. Read his blog, Brew Beat, and follow him on Twitter at @AdamMcCalvy. This story was not subject to the approval of Major League Baseball or its clubs.