PHOENIX —Los Angeles Dodgers reliever Tanner Scott walked back to the dugout as Ketel Marte, the Arizona Diamondbacks’ hero Thursday, made his way around the bases.

Marte’s walk-off moonshot, punctuated by a bat flip, defeated the Dodgers 3-2 at Chase Field. With one swing, the Dodgers’ opportunity to win the four-game series slipped through their fingers. They left Arizona with a series split.

The inning that gave the Dodgers their initial lead also included a collision that knocked Dodgers third baseman Max Muncy out of the game.

Muncy hit a ground ball up the first-base line, and Diamondbacks first baseman Ildemaro Vargas fielded it behind the bag. From there, it was a footrace, in what was going to be a close play.

They reached the base at about the same time, both running hard. The collision sent them both sprawling. Muncy’s helmet and glasses went flying. Vargas dropped the ball.

Both players were slow to get up. After athletic trainers conducted on-field examinations, Muncy and Vargas walked to their respective dugouts.

Muncy left after experiencing a shortness of breath and to undergo evaluation for a concussion, the Dodgers announced.

Because Muncy was called safe on the play, utility player Santiago Espinal replaced him as a pinch runner.

Muncy’s single started a two-out rally. Rookie Ryan Ward drove in Espinal with a double to the right-field gap over Diamondbacks right fielder Corbin Carroll’s outstretched glove. And then Dalton Rushing followed with a bloop single that dropped into shallow left-center field to score Ward.

Dodgers starter Justin Wrobleski (2.62 ERA) held the Diamondbacks scoreless for six innings, deftly navigating traffic from six hits.

Then in the eighth, Will Klein surrendered a solo homer to Carroll. It was the first time Klein (2.10 ERA) was charged with an earned run since May 3 against the Cardinals. He put two runners on base, with a walk and a single.

Alex Vesia was tasked with getting out of the jam with runners on first and second. But after generating a fly ball for the second out of the inning, he gave up a game-tying single to Geraldo Perdomo.

In the ninth inning, Will Smith doubled on a line drive into the left-field corner with two outs. But no rally emerged.

Scott took over in the ninth and struck out the first batter he faced. But then Marte delivered the winning homer.

Ohtani dealing with blister

Two-way star Shohei Ohtani, who had a planned day off Thursday, has been dealing with a small blister on the middle finger of his right hand for his last couple starts, manager Dave Roberts said.

“I don’t expect it to affect him going forward,” Roberts said a day after Ohtani held the Diamondbacks to two hits in six scoreless innings. “Even (Wednesday), if we wouldn’t have tacked on, he would’ve stayed in there.”

Roberts pulled Ohtani after the Dodgers pulled out to a seven-run lead in the top of the seventh inning.

Roberts also said he didn’t believe the blister affected Ohtani’s command last week, when he threw six hitless innings against the Rockies but issued four walks and hit a batter.

“When his command has been off, I think it’s a bigger thing than just a blister,” Roberts said. “Because it’s a small blister. That’s just when his mechanics are out of whack.”

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