velocity

PHOENIX — The “Beat L.A.” chants at Chase Field rose and fell for the final four innings, sometimes spurred organically, at other times prompted by the immense videoboard looming above center field.

And as the Dodgers’ offense continued to sputter, the Diamondbacks surged with a trio of home runs, giving the fans exactly what they asked for Monday night.

“Overall, I thought we had some good at-bats and barreled up some balls,” Dodgers right fielder Kyle Tucker said after the 4-1 loss. “But they made some nice plays and we just weren’t able to get the runs across, so just kind of how it goes sometimes.”

Tucker was one of five Dodgers in the starting lineup who went hitless. Designated hitter Shohei Ohtani was the only Dodger with multiple hits (three). And a quiet offensive night for the Dodgers wasted a quality start from starter Emmett Sheehan.

Sheehan held the Diamondbacks (32-27) to two runs and three hits in 6⅓ innings, carrying forward a recent trend for the Dodgers’ rotation, which entered Monday with a National League-best 3.05 ERA.

“I think it’s probably the back half of the rotation,” manager Dave Roberts said before the game. “To see what [Justin Wrobleski’s] done, to see what Roki [Sasaki] has done, to see what Emmet’s done — I think for me we’ve raised the floor of the starting rotation. The top end guys are kind of who they are, which is great. But every night we have a really good chance to win because of the starting pitcher.”

Monday was another one of those nights. But the Dodgers’ offense didn’t hold up its half of the bargain.

Sheehan — like Wrobleski and Sasaki this week — benefited from an uptick in velocity. His fastball averaged 95.9 mph on Monday, a season high and 1.7 mph above his average.

“I think it’s honestly just trying to relax early, and throw harder later in my delivery,” Sheehan said. “Before I was getting a little too tense, and that’s something the coaches mentioned to me. And it’s a bunch of other things too, but we’ve been working hard on it.”

Sheehan’s velocity has fluctuated all season, which he and the team attributed to inconsistent mechanics.

Dodgers starting pitcher Emmet Sheehan delivers during the first inning against the Arizona Diamondbacks on Monday.

(Rick Scuteri / Associated Press)

“It’s definitely been a process,” pitching coach Mark Prior said last month about syncing Sheehan’s delivery. “And it’s been a grind for him. Because he feels like some days he has it, some innings he has it; and other innings he doesn’t. It’s been kind of a roller coaster for him. It’s just part of the game.”

At times, his lower half was opening too quickly, throwing off the way his legs worked with his upper half. But on the days his timing was in sync, his velocity would often tick up, and everything would fall into place.

On Monday he was nearly perfect through the first 5⅓ innings, with the exception of Corbin Carroll’s first-inning double. He’d induced plenty of soft contact, plus three strikeouts, all in the first two innings. All three were put away with sliders.

“I thought he was really good — certainly deserved better,” Roberts said. “The fastball was good, slider was good, used the curveball, minimized hits.”

Then with one out in the sixth, Sheehan tried to work back from a first-pitch ball with a fastball up to Diamondbacks rookie Tommy Troy. The No. 9 hitter roped it beyond left field for his first major league home run.

After the Arizona lineup turned over and Sheehan retired Ketel Marte and Carroll to get out of the inning, Roberts stuck with the right-hander against switch-hitting Geraldo Perdomo and right-handed Nolan Arenado in the seventh.

With one out, Sheehan hung a slider to Arenado, who put the Diamondbacks up with a solo blast. And that would spell the end of Sheehan’s strong outing.

Reliever Jack Dreyer, making his first appearance since being activated off the 15-day injured list (left shoulder discomfort), gave up a two-run homer to Marte in the eighth inning to round out the Diamondbacks’ scoring.

The Dodgers’ offense managed just five hits against Diamondbacks starter Eduardo Rodriguez, and were robbed of two by center fielder Jorge Barrosa, who made diving catches on line drives hit by Will Smith and Andy Pages.

“He made some nice plays out there for them,” Tucker said. “We did all we could really do. Once the ball leaves the bat, it’s out of our hands. So we had some good swings, good at-bats, it just didn’t go our way sometimes.”

The Dodgers eked across a run in the third on a Freddie Freeman groundout with runners on second and third. And the Arizona bullpen faced the minimum over the final three innings.