The Giants have lost three straight games and need their bats to start clicking.
After a 5-3 loss to the Nationals on Tuesday night, manager Bruce Bochy is giving Brandon Belt, Buster Posey and Scooter Gennett a day off.
Pablo Sandoval will start at first base, Stephen Vogt will catch Shaun Anderson and Donovan Solano will man second base in the series finale on Wednesday night afternoon at Oracle Park.
After an incredible July, the Giants have fallen on hard times in August. They are 1-5 this month and now sit 3 1/2 games out of an NL wild-card spot.
Coverage begins at 11:30 a.m. PT with Giants Pregame Live on NBC Sports Bay Area and streaming on the My Teams app.
Here are the full Giants-Nationals lineups:
Washington Nationals (60-53)
Trea Turner (R) SS
Adam Eaton (L) RF
Anthony Rendon (R) 3B
Juan Soto (L) LF
Asdrubal Cabrera (S) 2B
Gerardo Parra (L) 1B
Victor Robles (R) CF
Yan Gomes (R) C
Joe Ross (R) P (1-3, 8.10 ERA)
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San Francisco Giants (56-58)
Steven Duggar (L) RF
Mike Yastrzemski (L) LF
Evan Longoria (R) 3B
Pablo Sandoval (S) 1B
Stephen Vogt (L) C
Kevin Pillar (R) CF
Brandon Crawford (L) SS
Donovan Solano (R) 2B
Shaun Anderson (R) P (3-3, 5.08)
