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Mariners Sign Rob Refsnyder to One-Year Deal to Strengthen Batting vs. Left-Handed Pitching

Seattle targets a right-handed platoon bat after a four-season run in Boston where his on-base rate against southpaws ranked among the league’s best.

Overview

  • Refsnyder’s contract is for one year at $6.25 million with $250,000 in incentives, according to reports from MLB.com and The Athletic.
  • The Mariners said he will be used primarily against left-handed pitching, with at-bats at designated hitter and in the corner outfield.
  • Since 2022, he owns a .407 on-base percentage versus lefties, third in MLB, and he hit .302 with a .959 OPS against them in 2025.
  • He batted .269 with nine home runs and an .838 OPS in 70 games last season, serving as a productive bench piece for Boston.
  • Seattle listed him as an OF/1B on announcement, though he has not played first base since 2020 and has been used mostly in the outfield and at DH.