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09/19/12 9:50 PM ET

Injured Cashner shut down for rest of season

PHOENIX -- The Padres have decided to shut down starting pitcher Andrew Cashner for the remainder of the season.

Cashner, who has missed 51 games this season with a strained right lat, indicated on Wednesday that he is still having pain in the tendon under his right armpit.

"I can still pitch, but I'm not able to cut my fastball loose," Cashner said. "That's when I feel the pain."

Cashner made two starts since coming off the disabled list on Sept. 1. He allowed two runs over five innings against Arizona on Sept. 7, then gave up six earned runs in 3 2/3 innings in his last start against the Rockies on Sept. 14.

Cashner's velocity has garnered a lot of interest, going all the way back to Spring Training. At one point this season, his fastball was clocked at 103 mph. On several other occasions, he topped 100 mph.

But his fastball never approached that figure after he returned from the disabled list. As it turns out, there was a good reason for that.

"He worked awfully hard, but he still feels it on some pitches. We felt the right thing to do was scale him way back," Padres manager Bud Black said.

Cashner was scheduled to pitch on Friday against the Giants at AT&T Park. Rookie Casey Kelly will now make that start. The Padres, who had been employing a six-man rotation, will now likely scale it back to five for the duration of the season.

As for Cashner, he admitted that the tendon has been bothering him for a while. He's been advised to keep playing catch to break up what he's been told is scar tissue in that area.

Cashner began the season as the Padres' eighth-inning specialist, going 3-3 with a 3.81 ERA in 27 games. He was later sent to the Minor Leagues to get stretched out as a starting pitcher. Cashner made three starts before feeling pain under his right arm. He then landed on the disabled list.

While discouraged that he won't make what likely would have been two more starts, Cashner said he's trying to look at the big picture.

"The biggest thing is getting healthy for next year," he said.

Padres still in awe of Cabrera's defensive gem

PHOENIX -- Shortstop Everth Cabrera added at least one fan with his highlight-reel play in Tuesday's loss to the D-backs -- an acrobatic double play turned in the seventh inning with a jump and spin move that left him throwing blindly to first base.

That fan was none other than Padres reliever Brad Brach, who got Paul Goldschmidt to bounce into the inning double play.

"Unbelievable," Brach said. "When I saw him facing right field, I thought he was going to hold the ball. That's probably the best play I've had made behind me."

Oddly enough, Cabrera made a nice play when Brach was on the mound the last time the two teams met at Chase Field, fielding a ball in the hole toward third base before throwing out Justin Upton.

"I owe him. Both were unbelievable plays and both completely different plays," Brach said.

Cabrera's manager, Bud Black, was impressed with the play, especially since it wasn't a garden-variety ball that was hit to his shortstop in the first place.

"That was a good play on a ball that wasn't hard hit. It was sort of a tough spot," Black said. "That was a pretty acrobatic play. Cabbie is capable of those types of plays."

Short hops

• After missing the past six games with soreness in his right knee, left fielder Carlos Quentin was back in the lineup on Wednesday against the D-backs.

"We'll get him out there tonight and hopefully he'll be able to contribute," Black said.

Quentin has had some soreness in the knee for a while. He had surgery on the knee in March and didn't make his Padres debut until May 28.

• Center fielder Cameron Maybin missed his second start in as many days on Wednesday with a sore left Achilles tendon. There was a chance he might be able to pinch-hit Wednesday, and Black thought Maybin could return to the lineup in time for Thursday's series finale.

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.