Pitching matchups for Diamondbacks’ weekend series in San Francisco

Diamondbacks at Giants

When: 1:05 p.m., Sunday.

Where: AT&T Park, San Francisco.

Pitchers: Diamondbacks RHP Zach Davies (2-5, 4.18) vs. Giants LHP Scott Alexander (0-0, 1.20).

TV/Radio: Bally Sports Arizona/KTAR-AM (620), KHOV-FM (105.1).

Davies was roughed up by the Astros on Tuesday, giving up four runs in 4 1/3 innings in a start at Minute Maid Park. … In five starts in September, he had a 6.00 ERA (14 earned runs in 21 innings). … Opponents have hit just .191 off Davies’ change-up, a pitch he threw one-third of the time. … … This was the spot in the Giants’ rotation normally occupied by RHP Logan Webb, but he was placed on the injured list with lower back stiffness. … The Giants are instead going with a bullpen game, giving the ball to Alexander for the third time this season and the second against the Diamondbacks. … He retired three of the four batters he faced when he started against the Diamondbacks last week at Chase Field.

Coming up

Monday: At Milwaukee, 4:40 p.m., Diamondbacks LHP Tommy Henry (3-4, 5.98) vs. Brewers RHP Brandon Woodruff (13-4, 3.05).

Tuesday: At Milwaukee, 4:40 p.m., Diamondbacks RHP Zac Gallen (12-3, 2.46) vs. Brewers LHP Eric Lauer (10-7, 3.83).

Wednesday: At Milwaukee, 1:10 p.m., Diamondbacks RHP Merrill Kelly (13-8, 3.43) vs. Brewers RHP Corbin Burnes (12-8, 2.98).

Diamondbacks at Giants

When: 1:05 p.m., Saturday.

Where: AT&T Park, San Francisco.

Pitchers: Diamondbacks RHP Drey Jameson (2-0, 0.98) vs. Giants TBA.

TV/Radio: Bally Sports Arizona/KMVP-FM (98.7), KHOV-FM (105.1).

Jameson fired 5 1/3 innings of shutout ball against the Giants when he faced them on Sunday at Chase Field, pitching effectively despite not having his best stuff. … He has given up just two runs in 18 1/3 innings, with 14 hits and five walks to go with 17 strikeouts. … Jameson has averaged 96.1 mph with his fastball and has a terrific 52.8 percent whiff rate on his slider. … When this spot in the Giants’ rotation came up against the Diamondbacks last week, they turned it into a bullpen game of sorts, with RHP Jakob Junis handling 5 1/3 innings in relief after taking over with two out in the third inning. … LHP Scott Alexander started that game. The Giants have also used RHP John Brebbia to start bullpen games in recent weeks.

Coming up

Sunday: At San Francisco, 1:05 p.m., Diamondbacks RHP Zach Davies (2-5, 4.18) vs. Giants RHP Logan Webb (14-9, 2.93).

Monday: At Milwaukee, 4:40 p.m., Diamondbacks LHP Tommy Henry (3-4, 5.98) vs. Brewers RHP Brandon Woodruff (13-4, 3.05).

Tuesday: At Milwaukee, 4:40 p.m., Diamondbacks RHP Zac Gallen (12-3, 2.46) vs. Brewers LHP Eric Lauer (10-7, 3.83).

Diamondbacks at Giants

When: 7:15 p.m., Friday.

Where: AT&T Park, San Francisco.

Pitchers: Diamondbacks RHP Merrill Kelly (13-7, 3.13) vs. Giants RHP Alex Cobb (6-7, 3.67).

TV/Radio: Bally Sports Arizona/KMVP-FM (98.7), KHOV-FM (105.1).

Kelly gave up two runs in seven innings against the Giants on Saturday, moving him to within 11 1/3 innings of the 200-inning mark. … It was the 13th time in 31 starts Kelly has logged seven innings or more. He has gone at least six innings 22 times. … He has faced the Giants 15 times in his career, posting a 2.56 ERA. In five starts this season, he has logged a 1.53 ERA. … Cobb matched up with Kelly and the Diamondbacks on Saturday and the results were not good. He gave up five runs in five innings, all of the damage coming in a five-run fourth inning. … He has a 5.88 ERA in five starts against the Diamondbacks in his career, four of which have come this season.

Coming up

Saturday: At San Francisco, 1:05 p.m., Diamondbacks RHP Drey Jameson (2-0, 0.98) vs. Giants TBA.

Sunday: At San Francisco, 1:05 p.m., Diamondbacks RHP Zach Davies (2-5, 4.18) vs. Giants RHP Logan Webb (14-9, 2.93).

Monday: At Milwaukee, 4:40 p.m., Diamondbacks LHP Tommy Henry (3-4, 5.98) vs. Brewers RHP Brandon Woodruff (13-4, 3.05).

Up next

San Francisco Giants

Giants update: The Diamondbacks just saw the Giants last weekend at Chase Field, where the Giants took two of three. The Giants were eight games under .500 on Sept. 9 but had won 12 of 17 entering their Thursday night series finale with the Colorado Rockies. 3B J.D. Davis has been their best hitter in recent weeks, going 18 for 58 (.310) with six doubles, three homers and 10 walks in his past 22 games. OF Joc Pederson is hitting .321/.391/.571 with three homers in his past 56 at-bats. LHP Carlos Rodon has been throwing well, with a 2.61 ERA and 36 strikeouts in his past 20 2/3 innings. RHP Tyler Rogers has not allowed a run this month, turning in nine scoreless appearances spanning 14 1/3 innings. If the Giants can win five of their final seven games, they would finish with a winning record in back-to-back years for the first time since 2015-2016.

Reach Piecoro at (602) 444-8680 or nick.piecoro@arizonarepublic.com. Follow him on Twitter @nickpiecoro.

This article originally appeared on Arizona Republic: Pitching matchups for Diamondbacks’ weekend series in San Francisco