Ronald Acuna Jr. will not play for the Atlanta Braves vs the Cincinnati Reds in the MLB Speedway Classic at Bristol Motor Speedway due to an injury.

The Atlanta Braves fell to the Kansas City Royals on Tuesday night, 9–6. While their struggles this season continue—with the team now sitting at 45–61 overall—the main concern centered around superstar outfielder Ronald Acuna Jr.

KANSAS CITY, Mo. -- Atlanta Braves outfielder Ronald Acuña Jr. was removed from Tuesday night's loss at Kansas City with tightness in his right Achilles tendon and will be placed on the 10-day injured list. Acuña experienced the discomfort after chasing down a ball in right field. He'll be evaluated further on Wednesday.