Sewald (neck) threw an 18-pitch live batting practice session Saturday, MLB.com reports.

Sewald (neck) played catch Friday and is scheduled to throw a bullpen session within the next few days, Nick Piecoro of The Arizona Republic reports.

The Diamondbacks placed Sewald on the 15-day injured list Sunday with left neck discomfort.

Sewald allowed two runs on two hits while striking out one over 1.2 innings in Friday's 10-9 loss to the Dodgers.

Arizona manager Torey Lovullo said Friday that he wants to get Sewald back to being a closer, Arizona Sports reports.

Sewald allowed one hit and struck out three over a scoreless inning in Saturday's 6-1 loss to the Rays.

Sewald walked one and struck out one over a scoreless inning in Saturday's 4-2 loss to Pittsburgh.

Diamondbacks manager Torey Lovullo said Friday that he is removing Sewald from the closer role, Nick Piecoro of The Arizona Republic reports.

Arizona manager Torey Lovullo said Sewald is having issues with his delivery, Steve Gilbert of MLB.com reports. ""There's something that's going on with his delivery," Lovullo said. "It's not allowing him to throw the ball where he wants to, have the finish on the ball and make the pitches that he's normally making."

Sewald was charged with a blown save in Sunday's extra-innings loss to the Pirates after he allowed a run on two hits in the ninth. He did strike out three.