In the 11th inning of their showdown with the Seattle Mariners on Monday night, the Arizona Diamondbacks snatched a clutch victory thanks to Josh Naylor's heroics at the plate.

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.

Diamondbacks first baseman Josh Naylor delivered a walk-off grand slam in the 11th inning to avoid another potentially disastrous loss.

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

Padres starter Stephen Kolek allowed four earned runs and gave up two home runs in his 4 1/3 innings of work Friday night.

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.