Acuña was the first player to commit to the derby, and there isn’t any clear indication right now on why he won’t participate.

Ronald Acuña Jr. won't participate in the Home Run Derby, replaced Friday by Atlanta teammate and fellow All-Star Matt Olson.

One thing is certain about Monday night’s T-Mobile Home Run Derby: Someone’s going to win who has never won before. When two-time winner Pete Alonso -- who honestly seems made for the Home Run Derby - ...