MLB trade deadline: Mariners acquire Luis Castillo from Reds for huge prospect haul | CBS Sports Headlines MLB trade deadline: Mariners acquire Luis Castillo from Reds for huge prospect haul The All-Star right-hander has been with the Reds his entire MLB career ESN FeedsThis post was originally published on this … Continue reading MLB trade deadline: Mariners acquire Luis Castillo from Reds for huge prospect haul