Victor Robles, Asdrubal Cabrera and Luis Garcia hit singles off Wheeler, who threw 108 pitches. Wheeler has been outstanding for the Phillies in his first season after signing a $118 million, five-year contract in free agency.

Aaron Nola and Hector Neris combined on a four-hitter in Philadelphia’s 6-0 win Tuesday night.

Phillies manager Joe Girardi gave red-hot Rhys Hoskins, who is 0 for 17 against Scherzer, a night off. Walker replaced him at first base and raised his average from .192 to .276 with three hits.

Nationals: RHP Javy Guerra was placed on the 10-day injury list with a left hamstring strain and RHP Kyle McGowin was recalled.

Phillies: Girardi said LHP Adam Morgan could be ready to return from the injury list when he’s eligible on Sept. 10. Morgan has a tired throwing shoulder.

RHP Anibal Sanchez (1-4, 6.90 ERA) goes for the Nationals and RHP Zach Eflin (2-1, 4.10) starts for the Phillies as they seek a four-game sweep.

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