Sewald worked a perfect ninth inning Wednesday to record his second save of the season in a 2-1 win over the Reds.
Sewald earned the save in Thursday's 5-4 win over the Reds, striking out two in a perfect ninth inning.
Sewald was not available to pitch Wednesday when Joe Mantiply picked up the save in a 4-3 win over the Reds, Steve Gilbert of MLB.com reports.
Sewald allowed a run on one hit and struck out one over one inning in Tuesday's 6-2 win over the Reds.
The Diamondbacks reinstated Sewald (oblique) from the 15-day injured list Tuesday.
Sewald (oblique) said Sunday that he responded well to Saturday's inning of work in an extended spring training game, Alex Weiner of Arizona Sports reports. "I haven't felt anything in 10 days now," Sewald said.
Sewald (oblique) threw an inning in an extended spring training game Saturday, Steve Gilbert of MLB.com reports.
Diamondbacks manager Torrey Lovullo said Friday that Sewald (oblique) is expected back Tuesday for Arizona's road trip, John Gambadoro of ArizonaSports.com reports.
Sewald (oblique) is scheduled to throw a bullpen session Wednesday, Alex Weiner of ArizonaSports.com reports.
Sewald (oblique) will have his rehab slowed a bit due to soreness, Jody Jackson of Bally Sports Arizona reports.