Luis Severino isn’t the only addition the Yankees may make to their pitching staff for the stretch run.

Right-hander Deivi Garcia is slated to make his debut with Triple-A Scranton/Wilkes-Barre on Monday against Columbus. The 20-year-old was promoted from Double-A Trenton after starting the Futures Game in Cleveland last week.

Aaron Boone also noted Sunday, before the Yankees beat the Blue Jay 4-2, that left-hander Jordan Montgomery is throwing again after being shut down with inflammation in his left shoulder last month. He had Tommy John surgery over a year ago and Boone said it was “possible” Montgomery could get back to the Yankees during the regular season.

After the Yankees went two straight games without a homer, Boone said it was “a little odd.”

“I actually thought about that [Saturday],’’ Boone said. “They were hot days in The Bronx, too.”

Earlier this season, the Yankees set a major league record by homering in 31 consecutive games, a streak that ended June 30.

“Over 162 games, you’re gonna have games when you’re not always gonna do it, even for our club, where you come to expect it day in and day out,’’ Boone said.

The Yankees just played the Rays in Tampa Bay before the All-Star break, but the second-place Rays will be in The Bronx for a four-game series beginning Monday.

“There’s no question those games take on more meaning because of where we are in the standings and them being in our division, so of course they take on more importance,’’ Boone said.

That’s one of the reasons he rested Aaron Hicks, with the Yankees opening the second half with 17 games in as many days.

Edwin Encarnacion also didn’t play Sunday, a day after being hit by a pitch on his left arm.

“He’s OK,’’ Boone said before the game. “He’s a little sore.”

Encarnacion underwent X-rays on Saturday that were negative.

Gleyber Torres made a throwing error in the first and a fielding error in the third before he recovered to make a good diving play while shifted into short right to rob Justin Smoak of a hit in the sixth.

Torres now has 13 errors this season, with eight of them coming in 61 games as a shortstop and five in 25 games as a second baseman.