http://www.fangraphs.com/blogs/index.php/how-good-is-jeff-samardzijas-splitter/
He has battled struggles with tiredness at times, which is understandable given the increased workload, but if he is able to sustain a mid-90′s fastball as a starter over the next few seasons and utilize his splitter with this type of consistency, he could elevate himself to become a top tier starter….With what is likely the top split-fingered fastball in baseball, it is reasonable to expect a similar level of performance or potentially even more success in the coming years.