He mixed in more changeups in 2016 .
He was still around 93 - 94 percent fastball - curveball , and based on his opponents ' slash line against , that 's just not enough to keep hitters off balance .
He mixed in more changeups in 2016 , but he was still around 93 - 94 percent fastball - curveball , and based on his opponents ' slash line against , that 's just not enough to keep hitters off balance .