The field for the upcoming 2025 Home Run Derby underwent a late-hour change Saturday, as Matt Olson of the host Atlanta Braves was announced as a replacement for teammate Ronald Acuña Jr., who will no longer participate.

Ronald Acuña Jr. hits a solo home run to left-center field, giving the Braves a 1-0 lead in the top of the 1st inning

Ronald Acuña Jr. won’t participate in the 2025 Home Run Derby and will be replaced by teammate and fellow All-Star Matt Olson.

Ronald Acuña Jr. no participará en el Derbi de Jonrones, y fue reemplazado el viernes por Matt Olson, su compañero de equipo en Atlanta, quien también

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

Acuña helped lead the Braves to a 9-2 win against the Athletics — just their third victory in 13 games — a day after an embarrassing 10-1 series-opening loss. The Braves hit a season-high five homers, with others from Drake Baldwin, Austin Riley and Marcell Ozuna, who hit his first in 22 games, since June 13.

Atlanta Braves first baseman Matt Olson will participate in the 2025 MLB Home Run Derby instead of right fielder Ronald Acuña Jr. at Truist Part on Monday night.