Duffy (shoulder) threw some long toss Sunday and is expected to make his Opening Day start against the White Sox on Thursday, Jeffrey Flanagan of MLB.com reports.

EDGE Analysis

Duffy exited Saturday's spring game with shoulder tightness but indicated afterwards it was a minor issue. Nonetheless, the 29-year-old playing long toss Sunday with no issues strengthens his status as he begins his prep work as the Royals' Opening Day starter.