Franklin Morales has had more success out of the bullpen than as a starter this season, but the Rockies will turn to him for Sunday's series finale against the D-backs, who will be vying for the sweep.
Morales is 4-6 with a 5.30 ERA in 16 starts this year, but he is 1-0 with a 4.00 ERA in 10 games out of the bullpen.
The Rockies have shuffled Morales back and forth from the rotation to the bullpen all season. After spending most of April and May in the rotation, Morales moved to a relief role in June, pitching 14 innings in eight June games. He finished the month with a 4.50 ERA.
Morales looked to have gotten a hold on starting last month, making four starts with a 3.50 ERA, but he has made two appearances this month -- one as a starter and one as a reliever.
His opponent on Sunday, Wade Miley, has spent all season in the rotation -- the only D-backs pitcher who can make that claim.
However, Miley's season has been just as rocky as Morales'. After having one of his best stretches of the season, the Royals bombed Miley for 10 runs in 4 2/3 innings in his last start.
The outing rocketed Miley's season ERA to 4.61 -- the highest it's been since July 1 and higher than his ERA in any of his first two full Major League seasons.
D-backs: Paul finding place on team
Xavier Paul's Major League stint with the D-backs has already lasted longer than his time with their Triple-A club, the Reno Aces.
The D-backs selected Paul's contract on Friday after he played one game in Triple-A.
"Actually, I went 0-for-4 and I had no clue that I would be up here [Friday]," Paul said.
Now Paul just has to find a role with his new team. He made a pinch-hitting appearance on Friday, coming in for pitcher Chase Anderson and flying out to center field.
On Saturday, manager Kirk Gibson expanded on Paul's role.
"If we get a righty, I'll probably play him out in left field," he said.
Paul has played 336 games in parts of six Major League seasons. He's hit .254 in his career, which he has split between the Dodgers, Pirates, Reds and now D-backs.
Rockies: CarGo misses game with knee injury
Carlos Gonzalez was out of the lineup for Saturday's game with a left knee injury after he was taken out early on Friday.
"I was having a bad day during batting practice," Gonzalez said. "It's tendinitis. I'm tired of talking about it. My body was beat up. My knee was beat up. Then they decided that was it."
Gonzalez's knee has bothered him for much of the season, but the Rockies don't believe Gonzalez needs to be shut down. Manger Walt Weiss said the team would manage the injury on a day-to-day basis.
Gonzalez is in the midst of his worst Major League season to date. The former All-Star is hitting .238 and has 11 home runs so far in 2014.
"I think it's important for every player to finish strong," Weiss said. "It's important for their psyche. It's important for their confidence. It's important going into the offseason for every individual and for our club. That's what you have to gain, by going out there, performing well and finishing strong. People tend to remember how you finish and forget how you started."
Mark Trumbo hit his first home run since returning from the disabled list on Saturday. Trumbo's last home run came on April 21, and he had gone 22 games without a homer.
Adam Lichtenstein is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.