Right-hander Brandon Pfaadt served up the first career home run to the Giants’ Christian Koss — a grand slam in the second inning — and the Arizona Diamondbacks trail, 6-3, in the bottom of the fifth on Tuesday night,

Christian Koss hit a grand slam for his first home run in the majors, and the San Francisco Giants beat the Arizona Diamondbacks 10-6 on Tuesday night to snap a four-game losing streak.

Justin Verlander pitched well on Monday against the Arizona Diamondbacks, but once again, was not rewarded with his first win in a San Francisco Giants uniform.