Max Scherzer struck out 10 batters and held the Diamondbacks to two runs over six frames to earn his 19th win of the season in a 4-2 victory.
Corey Kluber has been diagnosed with a mild quadriceps strain and is expected to miss 7-10 days.
Matt Koch held the Nationals to two runs over five innings in a spot start Tuesday.
Mark Melancon tossed a perfect ninth inning to notch his 44th save of the season in Tuesday's win over the Diamondbacks.
Anthony Rendon delivered a go-ahead three-run homer in the sixth inning of Tuesday's win over the Diamondbacks.
Jean Segura clubbed his 20th home run of the season in Tuesday's loss to the Nationals.
Chris Davis was ejected from Tuesday night's game against the Blue Jays for arguing balls and strikes.
Braves acquired INF Richard Rodriguez from the Giants for INF Gordon Beckham.
Dodgers manager Dave Roberts announced Tuesday that Clayton Kershaw will start Game 1 of the NLDS against the Nationals.
Giants purchased the contract of C Tony Sanchez from Triple-A Sacramento.
Giants designated RHP Matt Reynolds for assignment.
Giants placed OF Mac Williamson on the 60-day disabled list with a strained quad.
Eduardo Nunez (hamstring) is only expected to miss 2-3 days.
Johnny Cueto (groin) has been cleared to start Thursday at home against the Rockies.
Tyson Ross could need surgery to repair his injured right shoulder.