Duffey gave up one run over four innings with two strikeouts and no walks in Friday's spring training win over Boston. He lowered his spring ERA to 6.48.
After manager Paul Molitor all but named Duffey as the fourth starter, he struggled a bit in two outings which raised some doubt of his status in the rotation. Duffey should begin the season as the No. 4 starter if he doesn't collapse in his final few spring outings.