The Nationals will hope to bounce back from a tough loss in a matchup with A.J. Burnett and the Phillies.
Struggling closer Rafael Soriano will be given several days off to work out his kinks, leaving the Nationals to find at least a temporary reliever for the ninth inning.
After yet another extra inning game, the Nationals called up two more players to expand their roster to 34.
Denard Span and Bryce Harper explained their 11th inning collision after the Nats' loss on Friday night.
Denard Span reached a big career milestone in the Nationals' loss on Friday night.