Arizona Diamondbacks beat St. Louis Cardinals 9-4 with back‑to‑back homers

James Groover and Ketel Marte hit consecutive home runs in the fourth inning to spark a six‑run surge, giving the Arizona Diamondbacks a 9‑4 victory over the St. Louis Cardinals on Wednesday night. Every Diamondbacks hitter recorded at least one hit; Tommy Troy added two RBIs, and Ildemaro Vargas delivered a two‑out, two‑run double.

Mitch Bratt became the first Canadian pitcher to debut in the majors for Arizona, allowing one run and two hits over three innings. Cardinals starter Matthew Liberatore allowed six runs on eight hits in 5 1⁄3 innings, his ERA ballooning to 10.34 for June. The win came in the fourth game of the series, with Diamondbacks right‑hander Zac Gallen (3‑6, 6.10 ERA) slated to face Cardinals RHP Michael McGreevy in the finale.

The game followed a brief losing streak for Arizona and kept the Cardinals in contention in the NL Central.