MILWAUKEE -- Astros right-hander Felipe Paulino was diagnosed with bursitis in his throwing shoulder after being examined by team medical director David Lintner on Tuesday.
Paulino, who made only one rehab appearance before coming down with shoulder soreness, will begin a throwing program on flat ground, and his timetable for a return to the mound will be determined by how quickly he progresses.
The club hasn't ruled out Paulino pitching in September, but winter ball appears to be a more realistic goal.
"We hope at some point in September we'd see him," assistant general manager Dave Gottfried said. "Or that plus in winter ball, in a controlled environment."
Bursitis is a painful inflammation of the bursae, small fluid-filled sacs that cushion pressure points between the bones and the tendons and muscles near the joints.
Bursitis occurs when a bursa becomes inflamed, at which time movement or pressure is painful.
Alyson Footer is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.