Simplicity Becomes Sophistication for Kenley Jansen
PITTSBURGH — FanGraphs alum and MLB.com analyst Mike Petriello authored the following tweet last October. The social-media missive is pinned to his Twitter profile — and rightfully so, because it’s funny, and humor is often rooted in some truth.
pssst
it's a cutter pic.twitter.com/uKNI8HUeyD
— Mike Petriello (@mike_petriello) October 19, 2016
The truth, in this case, is that Kenley Jansen has dominated with one pitch like few before him — specifically, with a cutter that he’s thrown 86.0% of the time this year and 88.4% of the time over his carer. Jansen’s usage has invited natural comparisons to Mariano Rivera’s own approach for years. Jansen has become dominant in Rivera-like fashion and now just requires ultimate postseason success to further raise his profile.
I showed Jansen the tweet recently in the visiting clubhouse at PNC Park. To get a better look, he took my iPhone in his massive catcher’s mitt of a left hand and examined it. He could have crushed it like a soda can and returned the fragments to me. I waited in suspense for his reaction.



