The Arizona Diamondbacks defeated the Seattle Mariners 8-4 in a dramatic 11-inning game. Josh Naylor hit a game-ending grand slam, while Corbin Carroll hit a leadoff homer. The Diamondbacks overcame a blown four-run lead and the loss of closer Justin Martinez due to elbow tightness. Dominic Canzone, recently acquired and called up from Triple-A, hit his first major league home run, tying the game. The Mariners have now lost 11 of their last 15 games.

Prepared by Emily Rhodes and reviewed by editorial team.