Kittredge (elbow) has thrown 8.2 innings on his rehab assignment and is hoping to return in mid-to-late August, MLB.com reports.
Kittredge has been with Triple-A Durham for each of his last six appearances. He allowed six earned runs across just one-third of an inning in an outing July 23 but has otherwise been effective. Even so, the Rays will continue to take a patient approach as Kittredge returns from Tommy John surgery.