LOS ANGELES — Between now and October, the Dodgers will be evaluating their increasingly healthy pitching staff, trying to identify the best 13 arms for their World Series push.

And for now, they remain hopeful that rookie right-hander Roki Sasaki could be part of that mix; writing an unexpected end to what once seemed like a lost 2025 campaign.

After being one of the biggest stories of the Dodgers’ offseason this winter, Sasaki has become more of an afterthought in the eight months since.

Back in January, the Dodgers’ acquisition of the Japanese phenom felt like a coup. The 23-year-old right-hander was billed as a future star in the making. He came advertised with a 100-mph fastball, devastating splitter and seemingly limitless potential as an ace-caliber pitcher. Most of all, he was a bargain addition financially, requiring only a $6.5 million signing bonus (for six years of team control) after making a rare early career jump from Japan.

The reality, to this point, has been nowhere near the expectation.

At the start of the season, Sasaki made eight underwhelming starts — with wild command and declining fastball velocity contributing to a 4.72 ERA — before being sidelined by a shoulder impingement.

Since then, he has sat on the injured list and largely faded into the background. An important piece of the Dodgers’ long-term plans, sure. But a wild card, at best, to contribute to their World Series defense this fall.

Lately, however, the narrative has started to shift again.

Over the last month, Sasaki has finally started progressing in a throwing program, twice facing hitters in recent live batting practice sessions. He has another three-inning simulated game scheduled for Friday, after which he could go out on a minor league rehab assignment.

And after his early-season struggles to locate pitches or reach triple-digit velocities, the Dodgers have been encouraged with the changes he has made to his delivery and pitch mix. In a bullpen session Tuesday, Sasaki hit 96 mph with his four-seam fastball while also showcasing a two-seamer he has added during his time injured.

“I’m expecting to see pounding of the strike zone, conviction behind the throws, and just a better performer,” manager Dave Roberts said of Sasaki, who could rejoin the active roster near the end of August.

“At the end of the day, I just think that Roki has got to believe that his stuff plays here, which we all believe it does.”

The team’s title chances, of course, don’t exactly hinge on Sasaki. If their current rotation stays healthy, they should have more than enough starting pitching depth to navigate another deep October run.

But getting Sasaki back would provide some welcome pitching insurance.

He could also be a candidate to eventually shift to the bullpen, with Roberts leaving open the possibility of using him as a hard-throwing reliever come the end of the season (even though they intend to stretch him out to six innings as starter for now).

“We’re gonna take the 13 best pitchers [into the playoffs],” Roberts said. “If Roki is a part of that in some capacity, then that would be great. And if he’s not, then he won’t be.”

For much of the summer, it seemed like a long-shot the Dodgers would be having such conversations about Sasaki at this point.

For all the hype that accompanied his arrival, the results made him look like more a long-term project.

In his eight early-season starts, his fastball averaged only 96 mph, and was punished by opposing hitters for its flat, relatively easy-to-hit shape. His slider was a work-in-progress, leaving him without a reliable third pitch.

His go-to splitter did induce the occasional awkward swing from opponents, and garnered much praise from teammates. But Sasaki failed to consistently use it to generate chase out of the strike zone.

As a result, he pitched from behind in the count too often (evidenced by his 24-to-22 strikeout-to-walk ratio). He seemingly lacked confidence to attack opposing hitters over the plate (and gave up six home runs in just 34 1/3 innings when he did). And once he went down with his shoulder injury (which was similar to one that had bothered him during his Japanese career), the early stages of his rehab did not go smoothly, with Sasaki requiring a pain-relieving injection in June almost two months after initially going on the IL.

Since then, though, Sasaki has finally turned a corner.

He told reporters Tuesday that he now has “no pain” and is feeling “better about being able to throw harder” upon his return.

He has used his recent ramp-up as an opportunity to reset his mechanics, and clean up an arm path that Dodgers personnel believed was impacted by his shoulder problems at the start of the season.

“What we saw early on is probably not indicative of what everybody expects and has seen from him in the past when he’s been 100 percent,” pitching coach Mark Prior said.

While out injured, Sasaki has also had an opportunity to sit back and watch big league games up close, something Roberts and Prior insisted would be beneficial for a young pitcher who came to the majors with only 394 career innings over four seasons in Japan’s Nippon Professional Baseball league.

“He’s down there in that [dugout] stairwell when we’re at home pretty much all nine innings,” Prior said. “You can’t not learn by just watching and at least having some experience … I think he understands now the importance of, ‘I’ve got to be ahead. I’ve got to attack the strike zone.’ He doesn’t necessarily needed it to be executed precisely, but it’s got to be in the strike zone. You can’t be living behind in counts.”

There may be no bigger sign of growth than Sasaki’s embrace of the two-seam fastball.

Before he got hurt, it was a pitch that people within the organization thought could help keep hitters off his diminished four-seam heater. Prior said that, before Sasaki was shut down, the coaching staff had initiated a conversation about adding it to his repertoire.

“Clearly, everybody would love a fast, high-riding four-seam,” Prior said. “But even that being said, these [hitters] have gotten a lot better and know how to attack those things. So just giving them different looks and stuff to lean into and keeping the righties honest, just gives him some flexibilities and some options.”

The hope is that it will help Sasaki be more competitive when he returns, and complement the rest of his highly-touted arsenal.

That, when coupled with improved health and refined mechanics, will trigger a late-season resurgence capable of making him an option for the postseason roster.

“My every intention is to get back on the major league mound and pitch again,” Sasaki said through interpreter Will Ireton. “With that being said, I do need to fight for the opportunity too. I don’t think that I’ll just be given the opportunity right away.”

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