Bryce Harper was benched before the beginning of the seventh inning in the Nationals' loss to the Cardinals on Saturday afternoon for not hustling.
A throwing error in the second inning led to three runs for the Cardinals, a deficit that was too much for Washington to overcome in a loss to St. Louis on Saturday.
The Nationals reinstated center fielder Denard Span off the 7-day disabled list on Saturday, and optioned Steven Souza, Jr. back to Triple-A Syracuse.
With a quick turnaround after their 3-1 win the night before, the Nationals will send Jordan Zimmermann (1-0, 5.27) out to the mound on Saturday to face the Cardinals.
Nursing a 3-1 lead in the top of the eighth inning against the St. Louis Cardinals - a team they had not beaten in eight consecutive tries - the Nationals nearly saw it slip away.