Williamson (shoulder) is expected to begin a rehab assignment next week, Charlie Goldsmith of the Cincinnati Enquirer reports.

EDGE Analysis

Williamson initially went on the injured list before Opening Day because of a left shoulder strain, but he was later diagnosed with a Bennett lesion in his shoulder in June. The southpaw was given multiple injections in the shoulder and has been ramping things back up to the point that he's nearly game-ready again. Williamson could join the Reds by September, perhaps in a relief role.