On hiatus since the onset of the COVID pandemic, the Learning and Developing a Pitch series returned last week with three pitchers telling the stories behind their sliders. Today, in the second of this year’s installments, we hear from Jake Brentz, Brooks Kriske, and Hirokazu Sawamura on their changeups and splitters.

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Jake Brentz, Kansas City Royals

“I never had a changeup in the minor leagues. I was fastball slider/breaking ball, but I always mixed around my breaking ball. I didn’t really find a breaking ball that worked for me until probably a year and a half, two years ago — not until I got to Triple-A.

“Paul Gibson is our pitching coordinator here with the Royals, and last year at the alternate site he told me, ‘Hey, I would like you to develop a changeup; I think it would be a very valuable pitch for you.’ So I really focused on developing one, throwing it as many times as I could during an outing. We were just playing each other — nothing really mattered — so it was just developing and whatnot. I’d throw it back to back to back, and messed around with grips. I found one that really worked for me, and then worked on it more over the offseason. In spring training I wasn’t throwing it a lot at first, but Mike [Matheny] came to me said, ‘I think your changeup can be a devastating pitch, so we’re going to throw that a lot.’ Over time, I’ve continuing to throw it. Read the rest of this entry »

On hiatus since the onset of the COVID-19 pandemic, FanGraphs’ Learning and Developing a Pitch series returns with three pitchers — Michael King, Lucas Luetge, and Jordan Romano — telling the stories behind their sliders.

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Michael King, New York Yankees

“I’ve been developing a slider since my freshman year of college. I was always bigger curveball, and then I had like seven different grips in college. I could never get consistent with anything — not consistent movement, not consistent location — and it just never felt comfortable. So I always used to say that I was a sinker/slider guy that didn’t have a slider.

“Once I got drafted in 2016, I said, ‘I don’t care what it does, I’m sticking with this grip so I can at least locate it.’ In 2018 is when I finally felt like I was consistent with the shape and the location. Then we got a new pitching director, Sam Briend, and he said, ‘Your slider is terrible. It’s located well, but it doesn’t have a good movement profile. Let’s fix it.’

“In 2019, I got hurt, and then it was the whole process of trying to change the movement profile. I wanted it to be more horizontal, more sweepy, like [Corey] Kluber’s, rather than the slider I had, which just had a little bit of depth. This year I’m finally figuring it out. Having Kluber on my team, I could talk to him about his grip, what his mentality is, what he’s trying to do at release.

“A big thing for me was, because I wanted to get that sweep and horizontal, I would get really rotational with my body to try to pull it sideways. [Kluber] said that’s the opposite of what you want to do. He said to just let the grip do the work. Read the rest of this entry »