Rucinski was called up by the Twins from Triple-A Rochester on Friday, Brandon Warne of Zone Coverage reports.
Rucinski has pitched solidly at the Triple-A level in 2017, posting a 3.48 ERA and an impressive 11.32 K/9 over 10.1 innings. He'll look to provide the Twins with some added depth to a bullpen that has been worn fairly thin.