Busenitz was sent back down to Triple-A Rochester, Dan Hayes of The Athletic Minnesota reports.
Busenitz was roughed up his first time out in the majors, allowing three runs over 1.1 innings, but he picked up a win with 1.2 scoreless innings Thursday against the White Sox. The decision to return him to Triple-A came down to the fact that Busenitz still has options remaining, as the Twins needed to open up a roster spot for Saturday's starter Adalberto Mejia. Expect Busenitz back in Minnesota at some point this season.