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

Josh Naylor and Ryan O'Hearn have been playing a bit below their standards as of late, but these two stats show why they're both in great spots on Wednesday.

Josh Naylor hit a walk-off grand slam to lift his team but drew criticism from Justin Verlander’s brother for his “lazy” home run trot.

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.

The Arizona Diamondbacks won a thrilling, yet costly game against the Mariners in walk-off fashion by a score of 8-4. Merrill Kelly pitched well through six innings, but an injury to closer Justin Martinez led to a bullpen blowup. Josh Naylor played hero, crushing a walk-off grand slam in the 11th inning.

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.