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ST. LOUIS (AP) — Jack Flaherty hit his first career home run and became the major leagues’ first six-game winner, leading the St. Louis Cardinals over Colorado 5-0 in Nolan Arenado’s first game against the Rockies.

Arenado, a five-time All-Star and eight-time Gold Glove winner during eight years in Colorado, was traded to the Cardinals on Feb. 1 for five players. Arenado went 2 for 4, doubling off Gomber.

Flaherty (6-0) gave up three hits in seven innings and homered in his 117th big league at-bat.