BALTIMORE — The Yankees announced a slew of roster moves Saturday, with their infield taking an expected hit and their bullpen absorbing an unexpected setback. 

Before their 4-1 win over the Orioles at Camden Yards, the Yankees officially placed Josh Donaldson on the 10-day injured list with a hamstring strain (a move manager Aaron Boone called “likely” a day prior) and lost Jonathan Loaisiga to the 15-day IL with right elbow inflammation. 

Tommy Kahnle, who has been sidelined with right biceps tendinitis, was transferred to the 60-day IL.

The roster machinations created space for the Yankees to recall Jhony Brito, who started Saturday night, from Triple-A Scranton/Wilkes-Barre and to bring up outfielder Willie Calhoun, who had not previously been on the 40-man roster. 

The biggest surprise concerned Loaisiga, who was sent to New York for an MRI exam and received an injection because there was swelling.

Boone said the valuable righty’s ligament is fine, but the Yankees will shut him down for a while. 

“He’s probably up to a couple weeks of no-throw, hopefully sooner than that,” Boone said of Loaisiga, whose injury sheds some light on why Boone chose Jimmy Cordero to pitch the seventh inning Friday, when the Orioles scored two runs to break a tie and went on to beat the Yankees. 

Boone does not believe Donaldson will be out long, but the Yankees want to be careful with the third baseman, who pulled up lame while running to first base Wednesday. 

“I think it’s pretty minor,” Boone said. 

Kahnle was shut down in early March with tendinitis, which he has dealt with a few times in his career. According to Boone, Kahnle is throwing, slowly building up and has not suffered a setback. Shifting the righty reliever to the 60-day IL means he cannot come back until late May. 

“It was probably a month of no-throw, so the build-up’s probably going to be a little slower,” Boone said of Kahnle, who he said probably won’t begin rehab games until “early or middle” May. 

Calhoun, a 28-year-old with six seasons of major league experience, had a strong spring training before he was sent to Triple-A.

It is possible the corner outfielder could see playing time if Oswaldo Cabrera, who is among the options at third base with Donaldson out, gets more reps in the infield. 

“Hopefully there’s a start or two in there for Willie potentially on this trip,” Boone said. “But also a guy we think can really help us off the bench.” 

Calhoun will welcome any role. 

“I’ll do whatever they need, to be honest with you,” Calhoun said. “They need me to cook, I’ll cook.” 

Shortstop Oswald Peraza is day-to-day after missing three straight games at Triple-A with hamstring tightness, Boone said, adding he didn’t think the injury was “a big deal.” 

Harrison Bader (oblique strain) has been hitting, throwing and running, Boone said, and a rehab assignment could be approaching. 

“Hopefully next week to 10 days he’ll start getting some in games,” Boone said. 

Lou Trivino (right elbow strain) threw a bullpen session either Friday or Saturday. 

“He’s doing pretty well,” Boone said of the righty reliever, whom the Yankees are being careful with because the strain is to his UCL. 

Aaron Judge’s career-best on-base streak reached 41 games after he went 1-for-2 with a double, walk and sacrifice fly. 

Judge is the 10th Yankee since 1940 to record such a streak of at least 40 games. The longest belongs to Joe DiMaggio, who reached base in 74 straight games in 1941.