Patrick Corbin allowed two runs on four hits Friday.

SCOTTSDALE, Ariz. -- Patrick Corbin left a fastball up that Rockies pinch-hitter Ryan Casteel hit for a two-run homer, but he was otherwise happy with his first outing of the spring.

Corbin allowed two runs on four hits while throwing 53 pitches over four innings Friday.

"I felt good," he said. "[Worked] both sides of the plate with my fastball fairly good, threw a changeup and got a good swing and miss on it, a couple of good sliders."

The pitch that Casteel hit the opposite way for a homer was a fastball that Corbin left up and out over the plate after he got a little quick with his delivery.

"I mean I don't want to give up any runs or hits, and I want to have good innings, but I felt good," Corbin said. "Good command I thought today. I thought I threw all my pitches pretty well, and I'm happy with where I am right now."

With a longer-than-normal Spring Training, the D-backs had more time to stretch their pitchers out in simulated games before the Cactus League got underway.

Corbin threw three innings and 45 pitches in his last sim game, so going four and 53 was a natural progression.

"I felt pretty strong," he said. "The other two live outings we had, the sim games, I kind of got a little tired and felt a little winded, and today I felt pretty good going out there for four."

Trumbo sits vs. Rox but expects quick return

Outlook: Trumbo possesses stellar power, prone to K

SCOTTSDALE, Ariz. -- D-backs left fielder Mark Trumbo was scratched from Friday's starting lineup with a bruised left heel.

Trumbo, who was replaced in the lineup by Shelley Duncan, expected to be back in the lineup Saturday.

"It's not a big deal at all," he said Friday.

Trumbo went 1-for-4 in the first two games of the spring with two nice catches in left field.

"He's a little sore today, so we don't want that to go the wrong way," D-backs manager Kirk Gibson said. "We've got a lot of games to play."

To maximize at-bats, Owings to test second

Outlook: Owings could top 15 homers, 15 steals in '14

SCOTTSDALE, Ariz. -- In an effort to get Chris Owings and Didi Gregorius in the lineup at the same time this spring, D-backs manager Kirk Gibson will use Owings at second at times.

Gregorius and Owings are competing for the starting shortstop job, and Gibson wants to get the young players as many at-bats as possible.

When there are split-squad contests, as on Thursday, each player gets to start at short. Owings will get some looks at second, though, to improve his versatility.

"I feel fine over there at second," said Owings, who has almost exclusively been a shortstop in the Minors. "The only real difference is the footwork on the double play."

"He's swinging the bat very well," Gibson said of Owings. "There's a lot of sock in that bat. He's had a great attitude about wherever we've asked him to go."

With a left-hander starting for the Rockies on Friday, Owings got the start at short with the left-handed-hitting Gregorius coming in later in the game.