Thielbar threw a scoreless inning with a strikeout in Thursday's win over Kansas City.
Thielbar took over for starter Pablo Lopez in the sixth inning. Theilbar picked up where he left off last season when he posted a 12.1 K/9 and 15% swinging strike rate that was top 30 among qualified relievers. He'll reprise his role as Minnesota's top lefty reliever and will be used anywhere in the middle to late innings.