Duffy (heel) was transferred to the 60-day disabled list Friday.
Moving Duffy to the 60-day DL provides the Rays with another spot on the 40-man roster, which will be used to accommodate the recently acquired Taylor Featherston. Duffy's heel injury has continued to linger even after beginning fielding drills and batting practice, and the 26-year-old has been unable to progress to a rehab assignment in the past few weeks. With the addition of Featherston, signs point toward Duffy needing more time to recover from the heel injury that required surgery last September.