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3/21/2014 8:45 P.M. ET

Roach sharpening arsenal of pitches

PEORIA, Ariz. -- It certainly won't hurt pitcher Donn Roach's chances of making the 25-man roster that he is coming off his best outing of spring Thursday against the Giants.

Roach, 24, allowed two hits over 2 1/3 scoreless innings with one walk and three strikeouts. He lowered his spring ERA to 3.75 in 12 innings in doing so.

"I thought Donn threw the ball fine," said Padres manager Bud Black. "He kept the ball down and got his grounders. His sinker was moving, which for a lot a sinker ballers here in Arizona, is not easy. But he had consistent movement. He whipped out a couple of good breaking balls."

Roach had been trying to diversify his pitch arsenal to give hitters more than his plus-sinker to look at. He's also been more aggressive early in the count, mixing in his curveball more as spring has rolled on.

Roach also benefited greatly from a conversation earlier in camp with former Padres Cy Young Award winning pitcher Randy Jones (1976), who was a depended greatly on the sinker in his career.

"Most of the conversations were of a less-is-more mentality," Roach said. "When I try to do too much [with the sinker] my arm doesn't get out front and [the ball] flattens out. It will still get movement but doesn't get that depth and sink that I need to succeed.

"I just need to have trust in my ability to throw the sinker and let it work."

One of Roach's strikeouts Thursday was the result of a curveball.

"I'm using my curveball more than I have in the past and I think it's been good for me. I have thrown several good ones and I'm comfortable using it," Roach said.

Denorfia will miss a few days with sore shoulder

PEORIA, Ariz. -- Outfielder Chris Denorfia will likely miss a few days with a sore right shoulder, manager Bud Black said Friday.

Denorfia was in the starting lineup Thursday against the Giants but was a late scratch. Black said he's been told by team doctors that there's nothing serious going on, just that it needs some rest.

"He's feeling better but he's still sore," Black said. "Deeno and the doctors just think that this is a bump in the road.

Something might have got a little angry with the shoulder. But he feels confident that he's going to be fine."

Denorfia said everything is just precautionary at this point.

"I'm just taking it easy for a couple of days. I'm going to see the doctor tomorrow," Denorfia said. "But I'm not overly worried. I didn't want to push it yesterday."

Denorfia said he was encouraged that the soreness wasn't brought on by a specific incident, but seemed to be more cumulative.

"It was sort of a build-up," he said.

Denorfia is hitting .207 this spring in 29 at-bats with two steals and two RBIs.

Short hops

• The Padres released 11 Minor League players Friday including two with Major League service time: infielder Brandon Wood and left-handed pitcher Zach Braddock. The team also released infielders Michael Bass, Adam Ford, Miguel Jimenez, Gabe Suarez and Anthony Torres, catcher Danny Masiello, right-handed pitchers Vladimir De La Cruz and Tyler Hale and left-handed pitcher Levy Miller.

Wood played parts of five seasons in the big leagues for the Angels (2007-11) and Pirates (2011). He has a career line of .186/.225/.289 in 751 big league plate appearances. Braddock appeared in 71 games for the Brewers from 2010-11 when he posted a 4.41 ERA.

• Outfielder Alex Dickerson, who is out with a sprained left ankle, returned from San Diego before Friday's workout after meeting with team doctors. His prognosis is essentially the same -- a severe sprain that could means he starts the Minor League season on the disabled list.

• Infielder Jace Peterson was reassigned to Minor League camp Friday, bringing the number of active players in big league camp to 42. Peterson, who will likely begin the season with Double-A San Antonio, hit .179 in 28 at-bats this spring, seeing time in the infield, mostly at shortstop and third base.

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.