The first big move of the trade deadline happened Thursday when Arizona sent Josh Naylor, whom they acquired in an offseason trade with the Guardians, to the Mariners.

Naylor — who entered the weekend hitting .292 with 11 homers, 59 RBIs, 49 runs and a .807 OPS — will go from hitting behind Eugenio Suárez in a top-10 offense in a hitter-friendly ballpark to hitting behind Cal Raleigh, MLB’s home-run leader, in a top-10 offense playing its home games in the most pitcher-friendly park in the league over the past three years.

Though the move is a position upgrade for Seattle, it isn’t ideal for Naylor’s fantasy value — he was hitting .324 with five homers, 36 RBIs and a .855 OPS at Chase Field.

Since 2021, Naylor hit a homer roughly once every 24 at-bats — including a career-high 31 last year with Cleveland when he hit one every 18 at-bats.