Chargois was optioned to Double-A Chattanooga.
Chargois missed two seasons with elbow injuries but had a promising 2.70 ERA and 9.3 K/9 at Double-A last season. He had a 5.45 BB/9, however, so he'll need to improve his control to advance. He's the type of hard-throwing reliever the Twins desperately need in their bullpen.