Bellatti made two scoreless appearances in his first stint with the Rays, including his first Major League win. In two stints with the Bulls, he has gone 2-0 with a 3.08 ERA in seven appearances (four starts).
In Monday night's 7-3 loss to the Angels, Bellatti allowed two runs on one hit, an Albert Pujols homer.
The move is the 17th time the Rays have placed a player on the DL in 2015.
Bill Chastain is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.