JABO: Arizona’s Rotation Full of Kids

by
March 9, 2015

“It’s great, I love it,” said a bright-eyed Chase Anderson about the overfull rotation in Arizona this spring. Maybe he can be a little more enthusiastic about it — his arsenal is maybe more complete than the other nine young pitchers he’s competing with in camp. That doesn’t mean that he isn’t working hard to improve, along side other fellow Baby ‘Backs Rubby de la Rosa, Allen Webster, and Archie Bradley.

Anderson has two changeups, a good curve, and already showed the ability to get strikeouts and limit walks at the major league level, so he has to be in the driver’s seat. He said this spring is about work on his two-seamer in particular, as he’d like to get more ground balls.

Teammate Rubby de la Rosa has an electric mid-90’s fastball and a changeup taught to him by a legend. “Pedro Martinez taught me this grip, he told me ‘practice it every day, and if you can have it come out at the right speed, it will be a strikeout pitch for you, I’m 100% sure it’ll be a great pitch for you,'” de la Rosa said after a bullpen in camp last week.

RubbyChange

He may not get the same legendary drop that Pedro got from the same grip — de la Rosa laughed when asked about Pedro’s fingers and their flexability, saying he couldn’t do anything like that himself — but the new D-back has a good change. It’s above-average by drop and fade, and got 16% whiffs last year (average was 13%).

It’s the breaking balls that have eluded the 26-year-old righty so far. He hasn’t thrown many curves in games, and the slider hasn’t managed an average whiff rate yet. The pitcher talked before and after a bullpen about the keys for his slider. One key was just keeping his curve and slider from morphing into one slurve by focusing on his release point.

You Aren't a FanGraphs Member
It looks like you aren't yet a FanGraphs Member (or aren't logged in). We aren't mad, just disappointed.
We get it. You want to read this article. But before we let you get back to it, we'd like to point out a few of the good reasons why you should become a Member.
1. Ad Free viewing! We won't bug you with this ad, or any other.
2. Unlimited articles! Non-Members only get to read 10 free articles a month. Members never get cut off.
3. Dark mode and Classic mode!
4. Custom player page dashboards! Choose the player cards you want, in the order you want them.
5. One-click data exports! Export our projections and leaderboards for your personal projects.
6. Remove the photos on the home page! (Honestly, this doesn't sound so great to us, but some people wanted it, and we like to give our Members what they want.)
7. Even more Steamer projections! We have handedness, percentile, and context neutral projections available for Members only.
8. Get FanGraphs Walk-Off, a customized year end review! Find out exactly how you used FanGraphs this year, and how that compares to other Members. Don't be a victim of FOMO.
9. A weekly mailbag column, exclusively for Members.
10. Help support FanGraphs and our entire staff! Our Members provide us with critical resources to improve the site and deliver new features!
We hope you'll consider a Membership today, for yourself or as a gift! And we realize this has been an awfully long sales pitch, so we've also removed all the other ads in this article. We didn't want to overdo it.

The other key for his slider was more complicated. “I’m trying to get that pitch perfect,” he said. “I almost have it, but my arm speed is a bit fast, maybe. I’m tying to slow motion my feet so that I can catch up to my arm.” During his bullpen, you could see him trying to slow down his body compared to what he’s been in the past. Take a look at the end of his bullpen session in camp last week.

Read the rest on Just a Bit Outside.





 

With a phone full of pictures of pitchers' fingers, strange beers, and his two toddler sons, Eno Sarris can be found at the ballpark or a brewery most days. Read him here, writing about the A's or Giants at The Athletic, or about beer at October. Follow him on Twitter @enosarris if you can handle the sandwiches and inanity.

Comments are closed.