Mariners promote pitching prospect Matt Brash as rookies continue to fuel Seattle's wild-card push | CBS Sports Headlines Mariners promote pitching prospect Matt Brash as rookies continue to fuel Seattle's wild-card push Brash was acquired from the Padres in a trade last summer ESN FeedsThis post was originally published on … Continue reading Mariners promote pitching prospect Matt Brash as rookies continue to fuel Seattle's wild-card push