The Mariners have the deepest and perhaps best lineup in MLB.
The lineup was already great. It’s difficult to size up a group that plays half its games in a magenta-splashed house of horrors, but the Mariners’ 110 wRC+ is fourth best in MLB and fourth best in team history. It’s been their strength for most of the season.
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The lineup is now even better with Eugenio Suárez and Josh Naylor. With those additions, the Mariners’ active roster has posted 101.7 Batting Runs Above Average in 2025 — the most in MLB.