Duffy (heel) went through fielding drills and took batting practice Tuesday, Roger Mooney of the Tampa Bay Times reports.
While it's good to see that Duffy has resumed on-field activities, manager Kevin Cash indicated the Rays still haven't flushed out a timetable for the infielder's return from the heel injury, which has sidelined him all season. Given the length of Duffy's absence, he may require several rehab games in the minors before the Rays feel comfortable activating him from the 10-day disabled list.