Some Hayden Yuenger write up form the Athletic - wont paste the whole thing to avoid paywall issues but just some high points;
Last name is pronounced Ying-er
After the Blue Jays drafted him in the sixth round in 2021, they challenged the right-hander with an aggressive assignment in High-A Vancouver. Working in one- and two-inning stints, he racked up 34 strikeouts in his first 20 innings.
The plan all along, however, had been to stretch out Juenger as a starter, as is often the case with the organization’s most promising arms. With Juenger, it was also an opportunity to build up his workload. After three years in college and pro ball, he’d only pitched a little under 110 innings.
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Over fourth months in New Hampshire, Juenger largely thrived in a role best described as a bulk pitcher, with his starts typically lasting three or four innings. Over his 20 appearances, he averaged 10.8 strikeouts per nine innings compared to 3.4 walks.
By the end of July, Juenger had earned a promotion to Triple-A Buffalo, where he shifted to the bullpen. Still largely working multiple innings, Juenger was now tasked with facing batters that, on average, were about four years his senior. What Blue Jays bullpen coach Jeff Ware recalled about Juenger was his maturity. "He’s confident and he has a plan and he knows how to put together that plan and implement it in a Triple-A environment.” said Ware
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Still, Juenger was tested. He remembered one outing, about three weeks into his time in Buffalo when he entered a game in the fifth inning and basically everything that could go wrong did. The first two hitters he faced fell behind 0-2 but Juenger didn’t execute a put-away pitch and each wound up doubling. After issuing a walk, a ground ball snuck through a hole in the infield. Naturally, another double followed. All told he allowed four hits and four runs in a third of an inning.
The next day, veteran starter Casey Lawrence approached Juenger to ask him if he was OK. He reminded him that bad outings happen, but it’s how a pitcher responds that matters.
“Just having that conversation really put in perspective like, ‘OK, look this stuff’s going to happen, but it’s about how fast we can bounce back and not worry about it,” Juenger said.
Asked what prompted him to check in with Juenger, the 35-year-old Lawrence said he remembered how former Blue Jays pitchers like Jason Grilli and Mark Buehrle had done the same for him.
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Juenger’s approach is to attack the zone. He throws his 92-97 mph fastball up and pairs it with a plus-changeup and a slider — that plays more like a sweeper after a grip tweak in September — that, in Juenger’s words, “has come a long way.” All three pitches can miss bats, as evidenced by the 100 strikeouts in 88 2/3 innings. But mistakes also led to 18 home runs allowed.
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Juenger will begin the season in Triple A and is again poised for a flexible role. Whether it involves one-inning or multi-inning appearances or even short starts, he’ll be ready for whatever is asked. As for what he can work on, Ware said it’s all about finding more consistency with his pitches.
“Just executing his slider more consistently — consistently have the same shape of a slider or a very similar slider from pitch to pitch, and just executing his fastball at the top of the zone even better,” Ware said. “We saw a lot of good things from him, he did these things a lot already last year. It’s just getting a little bit more consistent with it.”
Juenger isn’t worried about setting a timetable for reaching the majors this year, but it’s fair to say he’s a name to watch.
“I’d love to debut this year coming up,” Juenger said. “But at the same time, I still got to play, I still got to perform well and time’s got to be right, as well.”