Story may return by the end of the month, giving the Red Sox some runway to figure out the caliber of player he is — the star-level performer from last summer, or the shell of that from early this year, when he was dealing with a sports hernia that required surgery.

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And Craig Breslow, chief baseball officer, did not rule out this week the possibility that Arias reaches the majors this season.

“Physical gifts and tools wise, you can watch Franklin and feel like this guy’s going to play in the big leagues. But you never know,” interim manager Chad Tracy said. “The best thing you could do is [ask], does he have the physical skills to do it? And do you like the character and the mental capacity and the ability to overcome things when they aren’t going right? Those are two big ones. By all intents and purposes, from what I know about the kid, he’s got those skills.”

Arias, 20, has slashed .326/.400/.581 with three home runs and 12 RBIs in 10 games with Triple-A Worcester. Three of those games have been as a second baseman, with the Sox seeking to expose him to another position.

“He’s doing great,” Tracy said. “He’s doing what he’s supposed to be. and now and to your question is getting a little exposure to another position, which is another challenge. Those are all good things.”

As for the 2026 question?

“I hate to put those types of expectations on a 20-year-old,” Breslow said Monday, after he did not acquire a shortstop at the trade deadline. “What I am very excited to say is every challenge he has faced, he’s met, which is pretty incredible for someone his age and what he has done at each level.”

Story, meanwhile, is getting “closer” to appearing in minor league games following late May surgery, Tracy said, and is mixing in more “very quick lateral movement stuff.” That had been a source of soreness earlier in his rehab.

Since Story’s return isn’t imminent, Tracy said he hadn’t thought through how he will work him in — including the possibility that he plays second base.

“We haven’t even gotten into that,” he said. “There’s consideration for everything, but we haven’t even gotten close to getting into that. Obviously, Mona’s taken over short. Trevor’s played a lot of short. He’s a good defender, so I think you have to keep all things on the table in our situation.”

First baseman Triston Casas had arthroscopic surgery on his left wrist, the team announced, another in a brutal series of events for the missing slugger. Over the past 15 months, he has endured major knee, abdominal, and now wrist issues.

This one apparently had been a lingering, on-and-off problem. So Casas and the Sox decided to just get it taken care of.

“The initial part of that was like conservative treatment to see if it can get better,” Tracy said. “The conservative the treatment wasn’t working.”

Tracy said he did not know if Casas had been ruled out for the season.

First baseman Willson Contreras was out of the lineup Thursday because he was “still feeling sick,” Tracy said.

The Red Sox remained of the belief, per Tracy, that it was not related to a possible concussion after Contreras got hit in the head with a pitch on Friday.

Were his symptoms the same as when he exited early Wednesday night, fever and dizziness?

“The fever is not real high, but just some symptoms that popped up, started popping up last night,” Tracy said. “He kind of saw it coming. It was getting a little worse. And then similar this morning, so it’s best [to] rest.”

With Garrett Crochet having begun a throwing program, a new possibility: He returns to the Red Sox as a reliever in time for the playoffs. “If he’s healthy and right, and he looks like Garrett Crochet, I think we’d be foolish not to consider that,” Tracy said. Crochet is in the “infant stages” of throwing, so stretching out to six innings by the end of September is “probably not feasible,” Tracy said … After Payton Tolle starts Friday and Jake Bennett Saturday against the Athletics, the Sox might go with a bullpen game Sunday, Tracy said. That would give the starters an extra day off.

Tim Healey can be reached at timothy.healey@globe.com. Follow him @timbhealey.