Cubs have 2 pitchers with the most "unhittable" pitches.

[beckdawg]

http://www.fangraphs.com/blogs/identifying-2013s-most-unhittable-pitches/

Pedro Strop slider, 43.8% contact
Jeff Samardzija splitter, 50.5% contact

 

[dabynsky]

Jeff Samardzija's splitter is a thing of beauty. Did I mention how much I like the split finger fastball?