Acuna exits game after running out single in 7th

Acuna Jr.'s RBI infield single MILWAUKEE -- Braves outfielder Ronald Acuna Jr. exited immediately after recording an infield single during the seventh inning of Friday night's game against the Brewers at Miller Park.

Atlanta announced soon afterward that Acuna departed with left groin tightness.

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After racing to record his single, Acuna passed first base and gingerly jogged into the outfield grass. There was no clear indication the 20-year-old phenom aggravated his left knee. He was sidelined for a month with the sprained left anterior cruciate ligament he sustained on May 27.

Acuna did not show a noticeable limp as he made his way back toward the dugout without any…