SCOTTSDALE, Ariz. -- Patrick Corbin commanded the strike zone and pitched well Sunday afternoon against the Rockies at Salt River Fields.

Corbin is battling with Randall Delgado and Tyler Skaggs for the fifth spot in the rotation.

The left-hander allowed one hit and walked one, while striking out four in two innings of work. Early in camp, D-backs manager Kirk Gibson and pitching coach Charles Nagy have preached commanding the strike zone above all else.

"I feel like I'm ahead of where I'm supposed to be at this point," Corbin said. "My arm felt great, which is always a good thing. I know Gibby and Nagy want your fastball command to be there, and that's something I felt like today I had working for me."

An impressive spring last year helped Corbin be the first pitcher the team called up from the Minors, and he would finish the season with 22 appearances, 17 of which were starts.

"Patrick threw the ball well," Gibson said. "He had great command, his slider was really good today, kept the ball down. Patrick's a great competitor, does a lot good. Just kept control of the game, he didn't really give them anything, made them earn everything they had."

Prado wants lots of at-bats this spring

SCOTTSDALE, Ariz. -- It didn't take D-backs manager Kirk Gibson long to learn something about Martin Prado.

Prado likes to play during Spring Training. Often.

"Prado's a different guy," Gibson said. "He virtually wants to play all the time. We've scheduled a couple of off days for him where he can just totally go and workout and hit. He likes to play, he likes ABs. He doesn't take anything off."

Prado, who came over from the Braves in the Justin Upton trade, said he's averaged 70 to 90 spring at-bats during his career.

"I'd rather have a lot of at-bats and feel more comfortable at the plate as soon as the season starts," Prado said.

Prado also has a unique mindset for the way he looks at the grind of a season.

"I prepare myself like the season is going to be 200 games," Prado said. "I don't think 162. It just helps me go harder in my workouts and go beyond with them."

Snake bites

• After watching his team commit several fundamental errors in Saturday's opening game, D-backs manager Kirk Gibson was happier with their performance in Sunday's win over the Rockies.

"Today was much better," Gibson said.

• Right-hander Charles Brewer threw two shutout innings of relief Sunday. The right-hander was 11-7 with a 5.99 ERA last year for Triple-A Reno. The Pacific Coast League, and Reno in particular, can be tough on a pitcher's ERA.

"You saw he used all of his pitches today," Gibson said of Brewer. "His secondary stuff was pretty sharp as well."

Last year, Wade Miley made the team after no one thought he would when camp opened, and Gibson said something like that could happen again.

"We're looking to have our eyes opened, so that could be a guy like Charles Brewer," Gibson said. "That's certainly within reason."

• Right-hander Bo Schultz shut the Rockies down in the ninth inning to preserve the win. Signed as a free agent last year after pitching for Grand Prairie of the independent American Association, Schultz has reworked his mechanics to throw more over the top.

"He's got good stuff," Gibson said.