Vargas (foot) was optioned to Triple-A Rochester on Sunday, Mike Berardino of the Pioneer Press reports.
The Twins elected to go with Robbie Grossman as their Opening Day designated hitter as Vargas deals with a bruised foot. The 26-year-old hit .230 and knocked 10 home runs in 47 games played for the big-league club in 2016 and is a good bet to rejoin the big-league club once healthy.