Ravin announced Friday via his personal Twitter account that he has signed with the Chiba Lotte Marines of Japan's Nippon Professional Baseball league for the 2019 season.
Ravin was designated for assignment by the Braves on Saturday.
Ravin (illness) was activated from the 10-day disabled list Friday.
Ravin had his contract purchased by the Braves on Saturday.
Ravin (hip) is listed on the travel roster for the Braves' Grapefruit League game Sunday against the Tigers, David O'Brien of The Atlanta Journal-Constitution reports.
Ravin (hip) has cleared waivers and has been outrighted to Triple-A Gwinnett.
Ravin has been placed on the 60-day disabled list with hip and groin issues, Eric Stephen of SBNation.com reports Friday.
Ravin was recalled from Triple-A Oklahoma City on Tuesday.
Ravin was optioned to Triple-A Oklahoma City on Wednesday, J.P. Hoornstra of the Los Angeles Daily News reports.
Ravin tossed three hitless innings Tuesday against Minnesota, allowing only a walk while striking out one en route to his first career save.