Bellatti was optioned to Triple-A Durham on Saturday, Roger Mooney of the Tampa Tribune reports.
Bellatti was in competition for a bullpen spot with the Rays, but the team has opted to go with Dana Eveland and Danny Farquhar on the Opening Day roster. The 24-year-old Bellatti had an impressive debut with the Rays last season, posting a 2.31 ERA across 23.3 innings, and he could be in line for a call up later in the season in the event of an injury or performance drop-off.