The 23-year-old first baseman did most of his damage early on. Batting cleanup for the Grizzlies, Singleton drove in two runs on a single with no outs in the first inning.
Singleton broke the game open with a grand slam in the second, giving Fresno a 9-2 lead with his 10th home run of the season, this one off pitcher Tyler Matzek.
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Singleton's grand slam
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An inning later, Singleton drilled a two-run homer, his 11th, to center field.