Duffy (heel) is scheduled to take batting practice against Brad Boxberger (back) next week and also play in extended spring training games, Roger Mooney of the Tampa Bay Times reports.
The infielder has had plenty of starts and stops in his rehab, with the latest setback coming after he fouled a ball off his foot while taking batting practice. Duffy has managed to play three games with High-A Charlotte, hitting .250 over eight at-bats. His batting practice sessions and the game action he's expected to see should serve as a good barometer of where he stands physically.