Training Ronald Acuna Jr. #13 | Atlanta Braves

Founder and inventor Dan Castle gets together with Ronald Acuna Jr. #13 of the Atlanta Braves to show him some new ways to speed up his recovery process after a severe ACL injury and surgery.

A few months later Acuna Jr. would be awarded the Major League Baseball Comeback Player of the Year 2022 based on his performance just 9 months after his ACL surgery.

"I use this device one hour a day, CastleFlexx is the best." - ACUNA JR. #13

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