![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://www.bardown.com/polopoly_fs/1.1042049!/fileimage/httpImage/image.jpg_gen/derivatives/landscape_620/aroldis-chapman.jpg)
Here's what happens when you get beaned by an Aroldis Chapman fastball - Article - Bardown
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://www.amny.com/wp-content/uploads/2022/10/AP22275731925248-1200x800.jpg)
Aroldis Chapman issues raise larger questions for Yankees bullpen
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://i.ytimg.com/vi/DW-eI03o0BE/sddefault.jpg)
Aroldis Chapman vs Matt Chapman ends with a 103.4 MPH strikeout!
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://upload.wikimedia.org/wikipedia/commons/thumb/8/8f/6TH_%283592445732%29.jpg/220px-6TH_%283592445732%29.jpg)
Glossary of baseball terms - Wikipedia
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://a1.espncdn.com/combiner/i?img=%2Fphoto%2F2020%2F0404%2Fr686188_2000x2047cc.jpg&w=570&h=583&format=jpg)
The most hyped prospect ever for all 30 MLB teams - ESPN
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](http://bronxpinstripes.com/wp-content/uploads/2021/04/GettyImages-1277919333-scaled-e1612878294547-1024x683-1.jpg)
Aroldis Chapman's new toy is actually unhittable, Bronx Pinstripes
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://www.usatoday.com/gcdn/-mm-/9e64d382f36fa4b50799f77caf3b9ad19d4ffe72/c=360-0-2941-1452/local/-/media/2018/03/29/USATODAY/usatsports/york_yankees-media_day_97808137-e1522345965524.jpg?width=2581&height=1452&fit=crop&format=pjpg&auto=webp)
Prospect hit by Chapman fastball has huge bruise
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://www.tiktok.com/api/img/?itemId=7220129795814903086&location=0&aid=1988)
Let's see if he can keep from walking every 3rd hitter now #MLB #baseb
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://www.tiktok.com/api/img/?itemId=7125640529680928042&location=0&aid=1988)
Nolan Ryan Fastest Pitch
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://nypost.com/wp-content/uploads/sites/2/2022/05/1397288064.jpg)
Aroldis Chapman surrenders walk-off as White Sox beat Yankees
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://static01.nyt.com/images/2016/05/15/sports/15CHAPMAN2/15CHAPMAN2-articleLarge.jpg?quality=75&auto=webp&disable=upscale)
Aroldis Chapman, Yankees' New Fireballer, Is Kindling Fans' Excitement - The New York Times
![Aroldis Chapman can't stop buckling batters' knees with his insane fastball](https://nypost.com/wp-content/uploads/sites/2/2018/03/ara.jpg?quality=75&strip=all)
Here's the holy hell an Aroldis Chapman fastball does to your body