The Twins selected Voth's contract from Triple-A St. Paul on Tuesday.
Voth was just inked to a minor-league contract earlier this month and is now with the big club after turning in a 5.40 ERA and 17:6 K:BB over 13.1 innings with St. Paul. He will provide length in the Minnesota bullpen and is a good bet to pitch Tuesday versus the Dodgers at some point after starter Kendry Rojas, who is not fully stretched out.