Mon 9/21/15 4:43 PM

Espinosa is dealing with a strained hamstring, Dan Kolko of MASN reports.
EDGE Analysis
As such, Espinosa is not in Monday's lineup, and he'll undergo an MRI on Tuesday to determine the severity of the ailment. It appears as though the Nationals are expecting Espinosa to miss at least a few games, and further details will emerge following Tuesday's evaluation.