TORONTO — Jordan Montgomery will start Sunday for the first time since May 1, 2018, when he left a game in Houston after one inning with a left elbow problem that required Tommy John surgery six weeks later.

“It feels like I was 5 years old when it happened,’’ Montgomery said of the road back. “Seventeen months, a lot of hard work got me back.’’

Montgomery, 26, made five minor league starts (three at Triple-A; two at Double-A) and threw 18 ²/₃ innings. He allowed 22 hits, fanned 17 and walked five.

Montgomery said it’s possible he could throw close to 60 pitches. Since he has been away from big league hitters for so long, it’s not likely Montgomery could pitch himself onto the Yankees’ postseason roster. Getting comfortable entering the offseason would be a nice goal, but Boone left the door open for something more to come out of it for Montgomery.

“I wouldn’t rule out that if he comes out and pitches really well he could push himself into the conversation,’’ Boone said before the Yankees’ 13-3 blowout win over the Blue Jays on Saturday.