Pittsburgh opened the scoring on an RBI infield single by Pablo Reyes in the second. With runners on first and third and two outs, Reyes hit a weak grounder to first baseman Miguel Cabrera, who looked to throw to second for a force, only to realize he had no play there. That initial reaction also cost him any chance of a play at first.
The Tigers wasted an opportunity in the third when Gordon Beckham hit a leadoff double and Grayson Greiner followed with a single. Beckham was sent home on Greiner’s hit and was thrown out at the plate by Reyes from left field.
Kang’s two-run homer in the fourth made it 3-0, but the Tigers scored two runs in their half of that inning. Cabrera came home on a passed ball, and Christin Stewart hit an RBI double.
Musgrove had allowed no earned runs in 15 1/3 innings entering the game.
Pittsburgh closer Felipe Vázquez, who pitched two innings at Washington on Sunday, was given the night off.
Josh Harrison, who went from the Pirates to the Tigers in the offseason via free agency, went hitless against his former team.