Bronson Arroyo has faced the Astros more than he has faced all but three Major League teams.
He'll pitch against them for the 32nd time when the D-backs play host to Houston on Tuesday afternoon. The Astros took the first game of the four-game, home-and-home Interleague series on Monday night at Chase Field, 4-3.
Arroyo's roots in the National League Central make him a familiar foe to the Astros. Tuesday will mark his 26th start against them. He has compiled a 13-7 record to go along with a 4.04 ERA against Houston for his career.
Because of the Astros' young roster, and their move to the American League, not many of their players are familiar with Arroyo.
The question for Houston leading up to the game will be whether George Springer will be among those getting their first glimpse of Arroyo. Springer was scratched from Monday night's game with a sore right knee. He is officially listed as day to day.
"It all depends on how he feels [Tuesday]," Astros manager Bo Porter said. "He was able to get treatment all day [Monday], and we'll come here [Tuesday] and see how he feels and go from there."
Springer, a rookie, is currently batting .251, but has a .843 on-base plus slugging mark. He has 12 homers and 35 RBIs through the first 47 games of his career.
His last time out against the Rockies, Arroyo was the beneficiary of a big outburst by the Arizona offense. In the outing, he basically pitched without one of his better pitches -- the curveball -- which he scrapped because of it not breaking at the high altitude.
"I threw a lot of fastballs today, stayed away from the breaking ball because it's hard to make it move here," he said. "I probably threw two-thirds fastballs, which isn't usual for me."
Arroyo will, in all likelihood, be back to showcasing the curveball in his home ballpark Tuesday.
Opposing Arroyo for the Astros will be Brad Peacock, who defeated the Angels his last time by tossing five innings and allowing three runs on six hits. The right-hander hasn't lost since May 12.
Astros: Porter relucatant to call Qualls his closer
Even though Chad Qualls leads the team in saves, picking up his eighth Monday night with a scoreless ninth, Houston manager Bo Porter is slow to call him the team's closer.
Still, Porter said Monday, "We have a lead in the ninth, Chad Qualls will get the ball."
The skipper added that he prefers to manage the bullpen on a game-by-game basis.
"You can technically say, 'Well, this is the ninth-inning guy, this is the eighth-inning guy,'" Porter said. "And because he's the eighth-inning guy, you bring the eighth-inning guy in the game, and now he faces three righties. They go boom-boom-boom, and you're sitting on the bus and you're like, 'Now how exactly did that happen?'"
Qualls is having the best season of his career with a 2.08 ERA in 24 appearances.
D-backs: Struggling Cahill designated for assignment
Monday, Arizona designated right-hander Trevor Cahill for assignment, meaning the club has 10 days to trade, waive, option him to the Minors or outright him to the Minors.
This season has been nightmarish for Cahill, who began the year as a starter and later moved to the bullpen. He's 1-6 with a 5.66 ERA in 19 games, including his four starts, this season.
The most likely choice for Cahill appears to be being optioned to the Minors, probably Class A Advanced Visalia. There, he could continue to work toward becoming the serviceable starting pitcher the D-backs' front office believes him to be still.
Because of his service time, Cahill has the ability to decline an option and become a free agent.
• In the eighth inning of Monday night's game, Houston reliever Tony Sipp moved from the mound to right field, helping to fill in for Springer. A batter later, he returned to the mound to strike out Miguel Montero. Sipp made one outfield appearance for Triple-A El Paso this season.
• For the first time in his short big league career, David Peralta went hitless for Arizona on Monday night. He had reached safely in all seven of his games before striking out three times Monday in an 0-for-4 performance.
Matt Slovin is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.