Aaron Boone was careful Saturday morning not to mention if the Yankees are interested in acquiring Marcus Stroman from the Blue Jays (they are) when asked about the Toronto right-hander, who is likely to be dealt before the July 31 trade deadline.

MLB frowns on teams talking about other clubs’ players.

Stroman, a Long Island native, starts against the Yankees on Sunday in the finale of a three-game series. It will be his first start since June 29 due to a cramp in the left shoulder pectoral muscle.

With the Blue Jays going nowhere and Stroman pitching well (3.18 ERA in 18 starts) teams, including the Yankees, have checked in with to see what the asking price will be. Stroman won’t be a free agent until after next season, so the price will be higher since he won’t be a rental.

“Real athletic and that lends itself to fielding his position incredibly well and is a guy who can sink the ball,’’ Boone said of Stroman (5-9). “A guy who generates weak contact and makes the ball move a lot of ways. Obviously, he is having a really good year for them this year.’’

Stroman, 28, isn’t the only starter the Yankees have an interest in obtaining Giants lefty Madison Bumgarner, Diamondbacks lefty Robbie Ray, Mets righty Zack Wheeler and Tigers lefty Mathew Boyd are in the mix.

According to Boone, Luis Severino was slated to visit with a doctor on Saturday and the Yankees were hopeful to get a timeline when the former staff ace will begin a throwing program. Severino hasn’t pitched this season due right rotator cuff inflammation that surfaced during spring training and a lat muscle problem in the area during a rehab program.

Boone, who didn’t have a postgame update, also didn’t have an exact date when Severino would begin throwing but said, “he is close.’’

On Friday general manager Brian Cashman said due to time constraints, Severino could be inserted into the bullpen when he is healthy enough to pitch.

Gary Sanchez started behind the plate on Friday night, so Boone had a choice: start Sanchez on Saturday or Sunday. Frequently the catcher who starts the night game doesn’t start the following day game.

“I felt he was good to go [Saturday] with the idea he will be down [Sunday],’’ Boone said of Sanchez, who started Saturday’s action in a 6-for-48 (.125) slump and could be bothered by a sore left thumb he suffered on June 30 in London.

That slump grew to 6-for-51 (.118) with a 0-for-3 game in Saturday’s 2-1 loss to the Blue Jays in which Sanchez was hit by a pitch in the left foot in the first inning.

Edwin Encarnacion got smoked on the left arm in the eighth inning by a Daniel Hudson fastball clocked at 96 mph, but he remained in the game.

“It was just loud and more scary than anything,’’ Boone said. “I asked him if he was going to be able to swing if it came back around. I would have probably ran for him there if he wasn’t able to hit again. He didn’t seem concerned.’’

Dellin Betances is scheduled to be examined Sunday and could begin a throwing program Monday. He has missed the season so far with a right shoulder impingement in spring training and a mild lat problem.

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Hal Steinbrenner was at Yankee Stadium on Saturday when the team celebrated Military Appreciation Day. Neil Freidman, a Yankees partner, donated $25,000 and CohnReznick Care gave $75,000 to the Special Operations Warrior Foundation.