Nationals manager Matt Williams said his level of concern was not high for Escobar yet, and the move was a precaution because Escobar was not scheduled to make the trip for Friday's game against the Braves.
"He's been working hard, extra stuff and taking all his BP," Williams said. "We'll see what the doctor says today, but he's been a little bit delayed the last couple of days. We'll get back today and see where he's at."
Escobar has also been dealing with an illness during the past few days that had kept him out of a team workout.
He is not scheduled to be in the lineup for Saturday's game against the Cardinals. Emmanuel Burriss is starting at second base and batting seventh in the batting order posted in the team clubhouse.
• Mike Carp was scratched from the team's lineup on Friday, after being hit on the right foot by a pitch in the third inning during Thursday's game against the Mets.
Williams said Carp's foot was swollen Friday morning, so the team decided to leave him back at their facility in Viera, Fla., to receive treatment.
Jamal Collier is a reporter for MLB.com. Follow him on Twitter at @jamalcollier. This story was not subject to the approval of Major League Baseball or its clubs.