Story (shoulder) could begin a rehab assignment in September, but the Red Sox haven't determined an exact date for it yet, Christopher Smith of MassLive.com reports.
The shortstop has taken live batting practice and gone through other baseball activities over the past few weeks as he tries to make it back before the end of the season from mid-April surgery on a fractured left shoulder. Given the length of his absence, Story would figure to require a significant number of rehab at-bats, but the calendar is working against him.