PITTSBURGH -- Athletics second baseman Zack Gelof is expected to have season-ending surgery on his left shoulder next week, manager Mark Kotsay said Saturday.
Gelof dislocated his shoulder Friday night while diving to field a ground ball in the Athletics' 4-3 victory over the Pittsburgh Pirates. Gelof was injured during spring training and had surgery to repair a broken bone in his right hand. He was not activated from the injured list until July 4.
"This is really unfortunate for Zack," Kotsay said. "But he does have a whole offseason to do the rehab, recover and be cleared for spring training."
In 30 games this season, the 25-year-old Gelof hit .174 with two home runs. He was placed on the 10-day injured list Saturday.
The Athletics also placed left-hander Sean Newcomb on the 15-day IL with right elbow inflammation, ending his season. Infielder Max Muncy (fractured right hand) was activated from the 10-day IL, and veteran right-hander Scott McGough was recalled from Triple-A Las Vegas.