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8/30/2014 4:50 P.M. ET

Benoit sidelined by shoulder pain

SAN DIEGO -- Closer Joaquin Benoit, who went 11 days between appearances recently because of a sore right shoulder, will be sidelined again after the pain in his shoulder returned.

Benoit made two appearances, on Aug. 24 and 26, and felt soreness in his shoulder after the second of those appearances. He wasn't available to pitch Friday and manager Bud Black isn't sure when he'll be back.

But Black is adamant about one thing.

"He'll pitch [again]," Black said before Saturday's game against the Dodgers.

Benoit pitched on Aug. 13 and then didn't appear in a game again until that outing on Aug. 24. He said that he felt good after that appearance but the pain -- similar pain -- returned after his outing Aug. 26 against the Brewers.

"It was good for a couple of days and came back, we didn't give it enough time to let the inflammation go away," Benoit said. "So now we start over."

Benoit, in his first season with the Padres, is 4-2 with nine saves and a 1.58 ERA in 51 1/3 innings. He has been the closer since the team traded All-Star Huston Street to the Angels in July.

The team will use rookie Kevin Quackenbush as closer in the interim with Dale Thayer and Nick Vincent getting chances to set him up.

As for Benoit, he'll wait patiently like he did before.

"It's a situation where you have to let it get better," he said. "But I'll be back on the mound."

Worth noting

• The Padres made a roster move Saturday, as infielder Chris Nelson went on the paternity leave list, returning home to Georgia to be with his wife.

The team added pitcher Jesse Hahn from Double-A San Antonio. Hahn would have joined the team on Monday when the rosters can expand to 40. Hahn, who is 7-3 in 12 starts for the Padres with a 2.96 ERA, will likely pitch exclusively out of the bullpen the final month of the season to limit his innings.

• The Padres will add several players on Monday and/or Tuesday when the 25-man roster can expand to as many as 40 players.

One player will be infielder Cory Spangenberg, who could join the Padres as soon as Sunday. The team's first-round Draft selection in 2011 has been slowed during his career by two concussions but has flourished with Double-A San Antonio, hitting .331/.365/.470 in 66 games.

He's a second baseman but has played center field and third base. He announced the news of his impending promotion on Twitter.

Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.