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

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

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 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.

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.

Josh Naylor conectó un grand slam para finalizar el juego en la undécima entrada y los Diamondbacks de Arizona vencieron el lunes por la noche 8-4 a

Josh Naylor makes a terrific diving catch on a 98-mph line drive from Cal Raleigh to kickstart an unassisted double play that close out the 8th inning

Josh Naylor drove in Geraldo Perdomo from third base with a chopping ground ball to first to cap a five-run ninth inning and the Arizona Diamondbacks rallied for an 8-7 victory over the San Diego Padres in Phoenix on Saturday.