By Alvin Alexander. Last updated: June 4, 2016
From this si.com article: (Joe) Maddon, when asked what impresses him most about Arrieta, says, “His constancy of character. I don’t think I’ve ever seen anybody work like he does, and when he plays, there’s an extreme calmness about the guy. When I speak to him in the dugout during the game, I can have a conversation with him. A lot of guys you can’t. He looks you right in the eye, he speaks slowly, there’s never any heavy breathing. Among all the pitchers I’ve ever had, he is in the present tense as well and as much as anybody.”