Peterson has been scratched from Friday's lineup due to a left ankle sprain, Kevin McAlpin of 680 The Fan reports.
Gordon Beckham is set to take over at second base and bat sixth in the order in place of the injured Peterson on Friday. It's too early to tell whether Peterson's ankle injury will keep him out for an extended period, but if it does, Beckham would be the logical replacement to see most of the starts at second base for the Braves.