Duffey gave up four runs, but just one earned, over 6.1 innings with seven strikeouts and no walks in Saturday's loss to Detroit.
Duffey allowed a three-run home run in the first inning after an error put two runners on base, but otherwise had a strong outing. It's not clear if he'll remain in the rotation when Ervin Santana (back) returns from the DL, but this outing should put Duffey in a good position when the Twins decide whether to send either him, Jose Berrios, or Alex Meyer to the minors.