Cleveland Guardians vs. Arizona Diamondbacks: Game Preview, Odds & Pitching Matchup for August 20, 2025

Wednesday, August 20th, 2025

Cleveland Guardians at Arizona Diamondbacks: MLB Showdown Preview

The Cleveland Guardians (64-61, third in the AL Central) take on the Arizona Diamondbacks (61-66, fourth in the NL West) at Chase Field in Phoenix. The series stands at 1-1, with this game set to break the tie and assert momentum for either squad in the latter half of the season.

Pitching Matchup

The Guardians will send Parker Messick (0-0) to the mound, seeking a solid start to set the tone for his club. For the Diamondbacks, Brandon Pfaadt (12-8, 5.01 ERA, 1.35 WHIP, 108 strikeouts) looks to build on his season and lead Arizona to a series win at home.

Odds favor the Diamondbacks at -120, while the Guardians sit at +100. The over/under for this matchup is set at 8.5 runs, anticipating potential offensive action under the Phoenix sun.

Team Breakdown

Arizona enters the game with a 31-31 home record and one of MLB's better team batting averages at .251, ranking eighth in the league. They have shown the ability to put up runs and will look to capitalize in front of their home crowd.

The Guardians carry a respectable 33-30 road record and excel when their offense heats up, boasting a 40-21 record in games where they notch eight or more hits. This will be the third meeting between these two teams this season.

Key Players to Watch

Arizona Diamondbacks

Geraldo Perdomo continues to be a standout for the Diamondbacks, hitting .289 with 13 home runs, 77 walks, and 81 RBI.
Ketel Marte has also been heating up recently, going 13 for 39 with five doubles, two home runs, and 11 RBI over the last ten games.

Cleveland Guardians

Jose Ramirez is powering Cleveland’s offense with 26 home runs, 51 walks, and 66 RBI while batting .291.
Steven Kwan has contributed 10 hits across his last 41 at-bats, including two doubles, a home run, and an RBI in the past ten games.

Recent Performance

In their last ten outings, the Diamondbacks are 5-5, hitting .272 as a team with a 4.96 ERA, outscoring their opponents by nine runs. The Guardians have struggled recently, posting a 4-6 record with a .206 batting average and a team ERA of 4.50, being outscored by 14 runs.

Injury Updates

Arizona Diamondbacks

Anthony DeSclafani (thumb, 15-Day IL), Kevin Ginkel (shoulder, 60-Day IL), Gabriel Moreno (hand, 60-Day IL), Tommy Henry (elbow, 60-Day IL), Ryan Thompson (scapular strain, 15-Day IL), Christian Montes De Oca (elbow, 60-Day IL),

Related Links

• Cleveland Guardians News & Updates
• Cleveland Guardians Schedule & Scores
• Arizona Diamondbacks News & Updates
• Arizona Diamondbacks Schedule & Scores
• MLB News