Ronald Acuña Jr. has been sidelined with Achilles tendon tightness, raising concerns about a potential serious injury. Know what Achilles tightness means, its risks, recovery process, and why even minor symptoms should never be ignored by athletes or amateurs.

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.

Preliminary tests indicate a positive prognosis for injured Atlanta Braves right fielder Ronald Acuña Jr. Atlanta Braves right fielder Ronald Acuña Jr. left Tuesday's game against the Kansas CIty Royals and is already on the injured list. But he appears to have avoided a serious injury.