Acuña Jr. unloaded on a pitch early in the game, sending a deep fly to right field, which he clearly thought would leave the yard. The ball ended up hitting off the top of the right field wall and came back into play. Acuña didn't run out the play, having already begun his home run trot, and was held to a single after Cody Bellinger quickly got the ball back in play. He was then caught trying to steal second base.
The Braves then announced that Acuña had been pulled from the game, replaced in the outfield by Adam Duvall. Here's what manager Brian Snitker said about it after the game.
While this isn't an injury for Acuña, his lack of hustle seems to have irked Brian Snitker, who turned the lack of effort into a teaching moment, using Acuña as an example for the rest of the team.
No matter how much a superstar you are, hustling is a vital part of baseball. Not only do the fans appreciate a player giving his all, but, as was the case here, you never quite know what the outcome of a hit will be. Acuña found out the hard way that laziness has its punishments, and he will spend the rest of the game cheering his team on from the bench.