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 delivered a walk-off grand slam for his Arizona Diamondbacks on Monday night, but you wouldn’t know it based on his reaction in a postgame interview.

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.

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.

Josh Naylor hammers a grand slam to right-center field to walk off the Mariners in the 11th inning and win the game 8-4

The Arizona Diamondbacks held the San Diego Padres to six hits in a 5-1 win on June 13, and overcame an error to play strong defense in the win.