Duffy's current physical setbacks may not be directly related to his surgically repaired heel, The Tampa Bay Times reports.
Duffy's progress from his surgery has appeared to stagnate this spring, but Rays manager Kevin Cash mentioned Friday that the issues may lie with the tendons and muscles in the shortstop's ankle and calf. The atrophy that may have come about in the post-surgical period could be responsible for Duffy's slow recovery, which has led to him missing all of spring training.