Manager Brian Snitker followed Acuña into the tunnel for an apparent conversation during the fourth inning before Adam Duvall entered the game in left field in the fifth, with Rafael Ortega moving from left to center field.
The move by Snitker came in the decisive game of a three-game series between the teams with the National League's best records. Acuña just missed robbing Cody Bellinger of a three-run homer in the first with a leaping try in center field.
Acuña is hitting .296 with 35 home runs and 85 RBIs, and leads the NL with 29 stolen bases and 104 runs scored.
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