"We are thrilled to add Josh as we make a push for the postseason," Seattle general manager Justin Hollander said in a statement.

Diamondbacks GM Mike Hazen is considering all options at the trade deadline, including buying, selling, or a combination of both.

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.