Another arm that has been brought up to eat some innings, Castillo has been injured of late but started 16 games for Oklahoma City this season.
The journeyman pitcher had an ERA of 4.20 over that time but has shown that he is capable of facing some of the best hitting and getting outs. He recently threw some innings out of the pen in Tulsa for the Drillers and enjoyed a little more success doing that. He posted a 1.29 ERA but is in a bullpen that is stacked with righties, so it will be tough for him to think about anything beyond September.
There will surely be more movement as the minor league season comes to a close and more players will be up with the Dodgers as they return from San Diego for a big series at home against the Diamondbacks.