So far in both PT 19 and PT 20, Patrick Corbin's card has come sans a fastball.
I don't know many, if any, pitchers who don't have a fastball in their pitch arsenal. Corbin uses his fastball a lot in RL too.
What happened with his card? Where did the heat go? And how does it affect his performance in PT? It's strange to imagine a pitcher not having a fastball to set up breaking pitches with, it seems like it would be a pretty big disadvantage not to have one.