Jazz Chisholm goes on IL as Yankees surprisingly dump recently acquired pitcher

CHICAGO — At the very least, the Yankees will be without Jazz Chisholm Jr. for 10 days. They were still waiting Wednesday to find out if it would be much longer than that.

The Yankees placed Chisholm on the 10-day IL Wednesday (retroactive to Tuesday) with a UCL injury that they described as a “left elbow sprain.”

He has been shut down from baseball activities as the team continues gathering medical opinions on his MRI exam results and a potential course of recovery — including whether that might require surgery.

“I can tell you Jazz is pretty encouraged by how he’s feeling,” manager Aaron Boone said Wednesday at Guaranteed Rate Field. “So hopefully that’s a good sign.”

Then again, Chisholm said Monday night he was “not super-concerned” about his elbow after injuring it on a dive into home plate.

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So the Yankees continued to play the waiting game with their biggest trade-deadline prize, who provided an instant spark upon his arrival, hoping to have access to him again sooner than later.

“Waiting for everyone to weigh in on the severity of the injury and then the course of, does that mean rest?” Boone said. “What [are] the steps of getting him to where he’s able to do some things physically?”

Surgery would be the last resort, while a rest-and-rehab route would give Chisholm a chance to play again this season.

The fact it is the UCL in his non-throwing elbow could give him a better shot at returning sooner, but it still could impact his swing and other motions in the field.

“Hopefully that’s a better thing — and being left-handed, probably is something that I would think bodes better for him with the swing,” Boone said. “We’ll see what we have. We’re just a couple days into this, but we’re also somewhat optimistic, too.

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“I know in his mind he feels like he could [swing] right now, which is hopefully a good sign.”

Still, Chisholm landing on the IL was the latest blow to the Yankees’ trade haul from last month.

Mark Leiter Jr. has been inconsistent across his first eight appearances out of the bullpen, and reliever Enyel De Los Santos was designated for assignment Wednesday after struggling — and with the Yankees needing a roster spot for Will Warren to make a spot start.

Chisholm was receiving treatment from the Yankees training staff Wednesday, testing range of motion and seeing how the elbow felt during manual tests.

The Yankees called up Oswald Peraza to take Chisholm’s roster spot , and the infielder could factor into the third-base mix (along with Oswaldo Cabrera and DJ LeMahieu), especially against left-handed pitchers.

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Though Peraza has struggled to hit consistently enough in his previous big league opportunities, he adopted a toe-tap in his swing since the All-Star break, which has led to much better results.

Cabrera, meanwhile, got his second straight start at third base on Wednesday against another righty.

He has hit well in sporadic playing time of late, batting .320 with a .915 OPS over his previous 21 games (57 plate appearances).

“Prepared, works, great teammate,” Boone said of Cabrera. “Brings an energy and a light to the field with him every day. And he’s a good player. He’s done a good job playing wherever we’ve asked, and feel like over the last month, especially, he’s swung the bat pretty well.”

But it will be difficult to fully replace Chisholm for however long he is out.

“He’s been a dynamic player for us, providing power and speed,” Boone said. “He’s done a great job on defense. He’s been great in the room. But hopefully it’s something that doesn’t turn out to be too long and we can get him back.”

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