Minneapolis, MN -- (Sports Network) - The Minnesota Twins have assigned pitcher Sean Henn outright to Triple-A Rochester and plan to recall left-hander Brian Duensing prior to Friday's game with the Detroit Tigers.

Henn, who signed as a minor league free agent this offseason, made 14 relief appearances and pitched to a 7.15 earned run average with an 0-3 mark for the Twins this season.

Duensing, who was a member of Minnesota's opening day roster, was 4-6 with a 4.66 ERA in 13 starts for Rochester. The 26-year-old made his major league debut with the Twins on April 10, when he pitched three innings and allowed two runs on two hits in his only appearance versus the White Sox. He was then optioned to Rochester on April 13.