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Story summary
- The Seattle Mariners are buyers at the MLB trade deadline on Monday, August 3, 2026.
- They prefer to move 33-year-old Luis Castillo and may help pay down part of his $30 million salary.
- Sources say the Mariners could acquire Padres reliever Adrián Morejón or Jeremiah Estrada in exchange for Emerson Hancock.
- They are targeting right-handed bat Taylor Ward and Gleyber Torres, who is owed roughly $7 million.
