Diamondbacks manager Kirk Gibson called Trevor Cahill's last outing a "good starting point."
On Wednesday, the 26-year-old right-hander will look to move forward.
It has been a tough season for Cahill, who made his first start since April 13 -- and first start since returning from a stint at Triple-A Reno -- on July 18 against the Cubs.
Cahill was serviceable, but not dominant, in his return to the starting rotation, allowing three runs on four hits in five frames against the Cubs in a come-from-behind victory for Arizona.
"Still kind of a work in progress," said Cahill after the start, admitting he felt some nerves. "Felt good out of the windup … but the stretch doesn't feel as comfortable -- still making improvements."
Overall, Cahill is 1-6 with a 5.63 ERA this year in 20 appearances (five starts), and he's 2-2 with a 4.15 ERA in five career starts against the Tigers.
He'll match up against Detroit right-hander Anibal Sanchez, who has been up and down in his last few outings.
Sanchez is 2-2 with a 5.23 ERA in his previous five starts. In his most recent outing, Sanchez blanked the Indians through six innings before combining with the Tiger bullpen to allow a seven-run seventh inning. Sanchez was responsible for four of those runs, while not recording an out in the inning.
"The ball got up in the zone," Tigers manager Brad Ausmus said. "He was real crisp up until that point, but it was almost like he hit a wall."
Working in Sanchez's favor is a history of success against Arizona. He's 3-1 with a 3.51 ERA against the D-backs in his career in six starts, and he threw a no-hitter against them in 2006.
Tigers: Jackson thriving in leadoff spot
Seeing that his center fielder was struggling, Ausmus talked to Austin Jackson in late June about adjusting his role.
He decided to move him from the middle of the order back to the leadoff spot -- where Jackson has thrived ever since.
"I don't want to say it was a last resort, but it was something that -- after talking to Austin -- I felt like the comfort of being in a spot he was familiar with might be easier at this point," Ausmus said.
Since the switch on June 29, Jackson is hitting .325 (27-for-83) in 20 games.
How long would Ausmus have stuck with Jackson if he continued to struggle?
"It probably would have depended on performance," Ausmus said. "It didn't start out great. I think he struck out ... four strikeouts the first game. But with baseball, one game obviously isn't an indicator. It probably would have been a few weeks, I imagine. It didn't happen, so I don't really know."
D-backs: Ross back on disabled list
D-backs right fielder Cody Ross is back on the 15-day disabled list, this time because of a left calf strain.
He was replaced on the Major League roster prior to Tuesday night's game against the Tigers at Chase Field by Alfredo Marte, who was recalled from Triple-A Reno.
Ross missed most of Spring Training and the opening weeks of the season, recovering from last year's severe hip injury and surgery, returning on April 18.
Ross, 33, is hitting .238 with five doubles, two home runs and 11 RBIs in 66 games this season. In his last 25 games, he batted .358 (19-for-53) with three doubles, a home run and four RBIs.
"The last thing you want to do is try to keep playing on it and it could end up being worse," Ross said. "It's frustrating after putting in so much work and effort and then coming up with something like this. It sets you back, but there's nothing you can really do about it."
• Paul Goldschmidt was named the D-backs' recipient of the annual Heart and Hustle Award from the Major League Baseball Players Alumni Association. He is one of 30 winners, which were announced on Tuesday
• The MLB Players Alumni Association announced utility player Don Kelly as the Tigers' 2014 Heart and Hustle Award winner.
Michael Lananna is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.