The Mariners transferred Brash (lat) to the 60-day injured list Friday.
Brash has been on the injured list since June 10 with a strained right lat, so while his move to the 60-day IL will create a 40-man roster spot for Carlos Vargas (lat), it won't affect Brash's return timeline. The 28-year-old righty began throwing off a mound last weekend and is trending toward returning to Seattle's bullpen sometime in early September.