The San Francisco Giants continue this four-game road series against the Arizona Diamondbacks tonight.

Taking the mound for the Giants will be right-hander Landen Roupp, who enters tonight’s game with a 3.43 ERA, 3.71 FIP, with 74 strikeouts to 34 walks in 81.1 innings pitched. His last start was in the Giants’ 3-1 win over the Chicago White Sox on Friday, in which he allowed one unearned run on seven hits with four strikeouts and two walks in five and a third innings.

He’ll be facing off against Diamondbacks right-hander Merrill Kelly, who enters tonight’s game with a 3.49 ERA, 3.33 FIP, with 100 strikeouts to 26 walks in 98 innings pitched. His last start was in the Diamondbacks’ 9-8 loss to the Miami Marlins on Friday, in which he allowed five runs (three earned) on six hits with seven strikeouts and a walk in five innings.

Game #87

Who: San Francisco Giants (45-41) vs. Arizona Diamondbacks (43-42)

Where: Chase Field, Phoenix, AZ

When: 6:40 p.m. PT

Regional broadcast: NBC Sports Bay Area

National broadcast: n/a

Radio: KNBR 680 AM/104.5 FM, KSFN 1510 AM