Hamels (oblique) will start throwing off flat ground Friday, Bruce Miles of the Chicago Daily Herald reports.

Hamels was diagnosed with a left oblique strain July 2, and the start of his throwing program is the first step in returning from the injured list. The veteran left-hander still has no official timetable for his return, but he'll need to rebuild some of his arm strength after not throwing over the last couple weeks.

More News
Our Latest Stories