Bellatti signed a minor league contract with the Orioles and was sent to Twin Lakes Park, Roch Kubatko of MASN reports.
The 25-year-old pitched briefly in the majors in 2015, accumulating a 2.31 ERA across 23.1 innings with the Rays before being optioned back down to Triple-A. However, Bellatti failed to make the Opening Day roster and struggled mightily in the minors in 2016, recording a 6.91 ERA in 14.1 innings of work. He'll serve as organizational depth for the Orioles, who are hoping he can find his form again in their minor league system.