PHOENIX -- The D-backs are starting to take the pedal off the metal. In everything except the win column.

"Everybody's kind of trimming back," D-backs manager Kirk Gibson said. "We've stayed off the field more."

And that's including the bullpen, which has been given some rest with seven solid starts from the rotation.

"It's helped them, but they're still throwing their share," Gibson said.

Left-hander Zach Duke hadn't pitched in over a week until Sunday's 6-1 win over the Padres.

"It felt good," Duke said after throwing a perfect inning of relief.

But the former starter said that there are challenges to staying sharp over a long layoff.

"Definitely," he said. "When you're in a game, there's a lot of adrenaline; you have to control that, and it's a lot different than a bullpen."

Duke said that he throws bullpens every couple of days to stay fresh between appearances.

Young not getting many hits, but getting on base

PHOENIX -- D-backs center fielder Chris Young said after Monday's 5-1 win against the Rockies that if you're not getting hits, you make sure nobody from the other team is getting any.

But while Young hasn't been getting many hits, he has been getting on base.

Young's 26 walks since the All-Star break entering Tuesday trail only Joey Votto (32), Carlos Pena, Prince Fielder and Mike Stanton (all 28) in the National League.

"I've just been trying to have good at-bats, that's it," Young said. "If walks come, I'm happy with walks at the time, but I'm just trying to have good at-bats, hit the ball hard, and if they don't give me anything, take my walks and let the next guy get it done."

Young expected to be in the starting lineup against Rockies right-hander Aaron Cook on Tuesday, but D-backs manager Kirk Gibson elected to keep him out.

"I don't like them at all," Young said about days off. "Every now and then you're going to get them, so I just have to support my boys."

And while he's hit a paltry .162 since the All-Star break, Young has shown signs of breaking out of that slump, recording a hit in five straight games before that streak was snapped on Monday.

"He said, 'You're kidding, right?'" Gibson said about Young's reaction to his day off. "He didn't want it, but it's by design to make us a better team through the end."

Gibson concerned with where Upton being hit

PHOENIX -- D-backs manager Kirk Gibson isn't concerned about Justin Upton getting hit by pitches.

He's concerned with where Upton's getting hit by those pitches.

"I understand you have to throw inside," Gibson said. "That's way inside. You can't get out of the way.

"Think of how many times he's been hit deep like that," he continued. "If it's a little higher, it's going to hit him in the head, so that's the most concerning thing about it."

Upton was hit in the back during the sixth inning on Monday night for his 15th hit-by-pitch of the year, which ranks third in the Major Leagues entering Tueday.

He was back in the lineup on Tuesday.

But there is something else that concerns Gibson about Upton getting hit.

"He's a very strong kid," Gibson said. "I'd hate to see him lose his mind and take matters into his own hands.

"I can tell you, if it was me, I couldn't guarantee what I would do at some point," he said. "I'm not promoting any kind of confrontation at all, trust me. But we've all probably lost our temperament sometime in our life. I hope it doesn't happen."

Worth noting

The D-backs' participants in the Arizona Fall League were announced on Tuesday. They are right-handers Charles Brewer, Eric Smith and Bryan Woodall, second baseman David Nick, third baseman Ryan Wheeler and outfielder Adam Eaton. They will play on the Salt River Rafters, with prospects from the Astros, Dodgers, Rockies and Tigers.