Gray will step into the rotation for a spot start on Tuesday as the Yankees look to give extra rest to their other starters. In six games (one start) since being removed from the rotation, Gray is 2-0 with a 1.83 ERA (19 2/3 innings).
Duffey is expected to throw one or two innings before the bullpen takes over as Minnesota deploys the 'opener' strategy for a third time this season. Duffey, 27, is 1-2 with a 9.00 ERA in 14 appearances for the Twins this year.