Boshers was recalled from Triple-A Rochester on Monday, Mike Berardino of the St. Paul Pioneer Press reports.
Boshers has already spent time with the Twins this season, compiling a 3.00 ERA and 1:1 K:BB across three innings of relief. The 29-year-old will offer another arm for a tired Twins bullpen, though he still likely won't see any high-leverage innings.