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.

The Atlanta Braves put five-time All-Star Ronald Acuña Jr. on the 10-day injured list with right Achilles tendon inflammation Wednesday, though the exact severity of the injury to the slugging outfielder may not be known until additional testing is done.