Duffy (Achilles) will play some shortstop for the Rays, Marc Topkin of the Tampa Bay Times reports.
Duffy struggled this season with the Giants, as he managed just a .253/.313/.358 batting line in 70 games. That makes him far from a viable fantasy option at third base, but he becomes much more interesting if he qualifies at shortstop, where the MLB average line is just .265/.320/.412. Duffy hit a sharp .295/.334/.428 in 149 games in 2015, so it will be worth watching if he can rediscover that form as a Ray once he's ready to return from the DL.