Arizona Diamondbacks' Josh Naylor discusses the moment he hit his walk-off grand slam to beat the Seattle Mariners on June 9, 2025.

With one big swing, Diamondbacks first baseman Josh Naylor saved the day for Arizona, which defeated the Mariners on Monday night.

After some early hiccups, the Diamondbacks played another quality all-around game, shutting out the Padres after the first inning for a victory.

Josh Naylor hit a game-ending grand slam in the 11th inning and the Arizona Diamondbacks beat the Seattle Mariners 8-4 after losing closer Justin Martinez with two outs in the ninth and then blowing a four-run lead.

A Boston Red Sox trade idea lands Arizona Diamondbacks slugging first baseman Josh Naylor after Rafael Devers refused to take over first base duties.

The Mariners are in danger of ceding the division to the Astros once again but the team could turn to the trade market for help.

The San Francisco Giants should be looking for a power upgrade at the trade deadline to make a postseason run.

Josh Naylor discusses the moment he hit his walk-off grand slam to beat the Mariners