Duffey was recalled from Triple-A Rochester after Saturday's game, and he will start Sunday for the Twins in the series finale against the Nationals.
Ervin Santana was scratched with a stiff back, so Duffey was recalled, as he is on the 40-man roster and last pitched Monday, so he will be on an extra day of rest. Santana's ailment is not expected to be a long-term issue, so Duffey could very easily be optioned back down after his start Sunday. Last year he posted a 3.10 ERA with 53 strikeouts in 58 innings over 10 MLB starts, and he was working with a 1.72 ERA and 1.40 WHIP with 13 strikeouts in 15.2 innings over three starts at Triple-A this year.