The Diamondbacks reinstated Sewald (oblique) from the 15-day injured list Tuesday.
The 33-year-old right-hander has been sidelined by an oblique strain but is ready to rejoin the team following three rehab appearances. Manager Torey Lovullo said Tuesday that Sewald will immediately reclaim the closer role, per Nick Piecoro of The Arizona Republic. Kevin Ginkel -- who has tallied five saves with a 2.57 ERA in 14 appearances -- will return to a setup role.