Garcia (biceps) recently hit a setback in his rehab, and it's uncertain when he'll pitch again, J.P. Hoornstra of the Los Angeles Daily News reports.
Manager Dave Roberts mentioned that Garcia's setback was related to one of his knees rather than his existing biceps injury, and while it's encouraging that his arm appears to be feeling fine, the interruption in the rehab process is obviously less than ideal. Garcia made rehab appearances for Double-A Tulsa on Thursday and Friday, so it's likely he picked up the knee ailment during the latter outing.