"Don't sleep on that fastball"

That's Sergio Romo, of course. He ended the World Series with a fastball down the middle to Miguel Cabrera after setting him with sliders. Eno Saris Fangraphs has a nice long post comparing Romo to Greg Maddux -- who Romo idolized as a kid. 

The 2013 Baseball Prospectus says this -- "His fastball doesn't have enough velocity to blow past hitters but Romo knows how to effectively mix it in."

Just ask Miguel Cabrera.