The Braves challenged Desmond's home run and won because umpires ruled the ball was lodged in the outfield padding.
If the right-handed starter feels fine on Saturday and Sunday, he could return to game action as soon as Sunday.
Both Ian Desmond and Bryce Harper are dealing with a cold.
Ian Desmond was removed from the Nationals' lineup this afternoon against the Astros.
The Nationals wanted to extend Ian Desmond long-term, but instead signed him for two years.
Ian Desmond further cemented his status as one of the best shortstops in baseball.
Both Nationals players finish as finalists, losing the awards to Andrelton Simmons and Carlos Gomez, respectively.
Winners for the award will be announced on Tuesday.
The shortstop becomes the first Nationals player ever to record multiple 20 homer-20 stolen base seasons.
Nationals Manager Davey Johnson believes that Jayson Werth and Ian Desmond were the team's best players this season.