Mitch Haniger hit his first career grand slam home run in the Mariners 7–6 win over the Tampa Bay Rays on August 19, 2017 at Tropicana Field.
After the Rays jumped out to an early 1–0 lead, Haniger’s grand slam in the top of the 3rd inning gave the Mariners a 4–1 lead they would not relinquish.
Nelson Cruz added a two-run home run in the top of the 4th inning to extend the Mariners lead to 7–2. The home run brought Cruz’s season RBI total to 100, marking his 3rd career season with at least 100 RBI and his second in a row.