In a move that highlights their aggressive strategy before the MLB Trade Deadline, the Seattle Mariners made headlines by acquiring first baseman Josh Naylor from the Arizona Diamondbacks on Thursday.

Who won the Josh Naylor trade between the Arizona Diamondbacks and Seattle Mariners? Check out early grades to Josh Naylor trade on July 24, 2025.

In a wide-open American League, the Mariners will have as good a chance as anyone to make a deep postseason run, and Naylor could be a big part of that. He’s played in three postseasons and is known for hitting clutch home runs.