Casey Fien has been fantastic for the Dodgers since being called up from Oklahoma City a week ago. He has gotten into three games, and struck out seven of the ten batters he's faced; including Kris Bryant twice.
That's not to say that Fien is the answer to our bullpen prayers. After all, three innings of work is hardly enough to go on. Still, you gotta love the results.
Fien has shown us good control on a deceptive fastball that runs in the mid-90's and looks to have a bit of a sink to it.