Stewart went 2-for-5 with a home run and two RBI in Saturday's 9-7 win over the Pirates.
Stewart opened the scoring with a solo shot in the first inning before adding an RBI single in the third. Despite hitting just .227 with 20 hits in 88 June at-bats, the 22-year-old has still been productive with 20 RBI in the month. For the year, he's slashing .252/.341/.454 with 15 homers, 57 RBI, 43 runs scored and 11 steals across 352 plate appearances.