ST. LOUIS (Interstat) — Robert Gasser pitched five innings and the Milwaukee Brewers broke open a tight game with a seven-run seventh inning to defeat the St. Louis Cardinals 10-2 on Tuesday in the first game of a doubleheader at Busch Stadium III.

The Brewers scored first in the third on a groundout by Christian Yelich that brought home Cooper Pratt. Milwaukee added two runs in the fifth on a single by Luis Lara. The Cardinals cut the lead to 3-2 in the sixth on a two-run homer by Nelson Velázquez.

But Milwaukee erupted in the seventh. Brice Turang doubled in a run, Gary Sánchez singled in two, Jackson Chourio singled in one and Pratt doubled in two to cap the outburst.

Gasser (2-3) allowed two runs on four hits with four strikeouts. Hunter Dobbins (1-1) took the loss, giving up three earned runs in five innings. The Brewers had 10 hits; the Cardinals four.

Attendance was 20,399. Game time was 2:38. Milwaukee improved to 58-33; St. Louis fell to 47-43.