San Francisco Giants vs. Arizona Diamondbacks Preview & Prediction: NL West Rivals Clash in Phoenix on September 16, 2025

Tuesday, September 16th, 2025

San Francisco Giants at Arizona Diamondbacks: MLB Game Preview – September 16, 2025

The San Francisco Giants (75-75, fourth in the NL West) visit the Arizona Diamondbacks (76-75, third in the NL West) for an important NL West showdown at Chase Field in Phoenix on Tuesday at 8:40 PM local time.

Matchup Overview

The Giants enter this contest looking to snap a three-game losing streak, while the Diamondbacks seek to extend their edge in the season series, currently leading 6-5 across eleven previous matchups. With just a single game separating these rivals in the standings, this twelfth meeting carries significant postseason implications.

Pitching Probables

San Francisco’s starting pitcher is to be determined, while Arizona will send left-hander Eduardo Rodriguez (8-8, 4.98 ERA, 1.55 WHIP, 130 strikeouts) to the mound, hoping to build on his solid strikeout numbers.

Key Team Stats

The Diamondbacks hold a 39-34 record at Chase Field and boast the fourth-highest slugging percentage in the major leagues at .435, making them a constant power threat. The Giants, with a 37-38 road record and a 40-24 mark in games where they haven't allowed a home run, will strive to limit Arizona’s high-powered offense.

Top Performers

For Arizona, Geraldo Perdomo has been a catalyst, hitting .290 with 28 doubles, five triples, 19 home runs, 90 walks, and 97 RBI. Catcher Gabriel Moreno is 11 for his last 33 with two homers and seven RBI over the past 10 games.

On the Giants’ side, Rafael Devers leads with 31 doubles and 31 home runs. Jung Hoo Lee remains hot with a .333 average over the last 10 games, including a triple, a home run, and four RBI.

Recent Form

Diamondbacks (last 10 games)

Record: 6-4
Avg: .268
ERA: 4.39
Run Differential: +11

Giants (last 10 games)

Record: 4-6
Avg: .220
ERA: 5.01
Run Differential: -7

Injury Report

Arizona Diamondbacks

Tyler Locklear (10-Day IL, elbow), Pavin Smith (60-Day IL, quadricep), Lourdes Gurriel Jr. (10-Day IL, ACL), Kevin Ginkel (60-Day IL, shoulder), Tommy Henry (60-Day IL, elbow), Christian Montes De Oca (60-Day IL, elbow), Justin Martinez (60-Day IL, elbow), Cristian Mena (60-Day IL, shoulder), Corbin Burnes (60-Day IL, elbow), A.J. Puk (60-Day IL, elbow), Blake Walston (60-Day IL, elbow)

San Francisco Giants

Dominic Smith (10-Day IL, hamstring), Randy Rodriguez (60-Day IL, elbow), Carson Whisenhunt (15-Day IL, back), Landen Roupp (15-Day IL, knee), Erik Miller (60-Day IL, elbow), Tom Murphy (60-Day IL, back)

Weather

Today's weather at Chase Field features warm temperatures around 89°F under mostly clear skies, with less than a 5% chance of rain. Light winds from the southwest at 6 mph won't significantly affect gameplay, making for excellent baseball conditions.

In summary

The San Francisco Giants face the Arizona Diamondbacks in a crucial NL West battle with both teams aiming to boost their playoff hopes. Arizona’s powerful lineup and home-field advantage are set against a San Francisco squad eager to regain form after recent struggles. With exciting individual performers and favorable weather conditions, this late-season game promises competitive action and postseason implications.

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