The Rays placed Fleming (oblique) on the 15-day injured list Tuesday, Marc Topkin of the Tampa Bay Times reports.
The oblique injury which shortened Fleming's relief outing Monday against Boston will sideline him through the All-Star break. Even once healthy, the lefty may not pitch many innings for the Rays in their wild-card chase if he doesn't improve upon his 6.84 ERA and 1.97 WHIP.