Three times over the past two losses, the Nationals have failed to move a runner over from second base.
Adam LaRoche has dealt with back stiffness for years and knows his recent bout isn't serious.
Doug Fister will try to prevent the Phillies and Kyle Kendrick from sweeping the Nats.
Adam LaRoche is back in the lineup after nursing a stiff back on Tuesday.
Gio Gonzalez is winless since July 5, and his pitching coach thinks he needs to throw more curveballs.
The utility man is 10 for his past 16 and has been part of several key Nationals rallies.
Matt Grace and Pedro Severino headline the Nationals' fall league contingent.
With a decision looming about his place on the postseason, Tanner Roark hasn't slowed down while reaching a new high in innings.
The first baseman has been dealing with back tightness for three or four games and felt it worse Tuesday.
Gio Gonzalez will try to prevent consecutive losses against Cole Hamels.