It didn't matter what Andrew Heaney threw toward home plate tonight at Chase Field, the Diamondbacks were ready for it.

Whether it was this 0-1 changeup near the bottom of the zone: 

Or this 1-2 fastball way above it: 

Both of those home runs -- Eugenio Suárez's solo bomb in the third and Josh Naylor's two-run shot in the fifth -- helped hand the Pirates a 5-0 loss to the Diamondbacks. It also followed a theme for Heaney's latest start. 

The Diamondbacks were aggressive from their first batter as Ketel Marte swung at the first pitch he saw -- a middle-middle fastball -- and cranked it for a single. Heaney went on to give up eight hits -- three of which went for extra bases -- five earned runs and three walks over five innings.

"They were putting good swings, swinging early, swinging aggressively," Heaney said. "Just felt like I was throwing a lot of balls over the heart of the plate and I feel like that's going to get you in trouble, regardless of who you're facing most of the time." 

Heaney prioritized a three-pitch mix tonight with his fastball (37 times), changeup (19) and sinker (10). He threw his slider and slow curve four times apiece as well. The Diamondbacks were attacking within the first four pitches of at-bats when they had success and were taking advantage of pitches that Heaney left over the middle of the plate. 

Take Marte's RBI single in the second to score Gabriel Moreno: 

Heaney didn't leave his 1-1 slow curve middle-middle, but it caught enough of the plate for Marte to do damage. 

"When they got an opportunity to hit it, they didn't miss, it seemed," Don Kelly said. 

• Braxton Ashcraft made his major-league debut in the sixth inning when he relieved Heaney. Ashcraft, the Pirates' No. 7 prospect, according to MLB Pipeline, threw three scoreless innings, allowed two hits, one walk and struck out one. 

"It's always exciting to take the next step in your career," Ashcraft said. "Obviously you want to win. But taking that step in my career, becoming a big leaguer and having success. Now the most important thing for me to do is making sure that I stay within myself, like we talked about before and understand it's the same game." 

Ashcraft will be working out of the bullpen for the Pirates after starting 10 games and producing a 5.03 ERA and 1.49 WHIP with Class AAA Indianapolis. However, he's ready for whatever role they put him in. 

"I'm out here to do my job. We had conversations in spring training about what my role would be this year," Ashcraft said. "I maintain that I would do anything to help this team win. If I can put together outings like that consecutively in situations that are tight games and give our team a chance to win, that's the most important thing. That's what our job is as pitchers. Stop runs and get outs. As long as I do, that's the biggest thing."

• Despite the Pirates' 26-game streak of scoring four or fewer runs being over, their offense continues to show it can't produce. Tonight, they stranded eight baserunners and went 0 for 7 with runners in scoring position. They also loaded the bases in the eighth inning with no outs before Bryan Reynolds struck out, Spencer Horwitz popped out and Joey Bart did this: 

After 55 games, the Pirates are hitting .167 with the bases loaded, which ranks 28th in Major League Baseball, and have two extra-base hits in 43 plate appearances. They also have the second-fewest RBIs with runners in scoring position and the fifth-worst batting average at .214.