Christian Walker singled home the go-ahead run in the ninth inning and the Houston Astros beat the Arizona Diamondbacks 4-3 to complete a three-game sweep.

Diamondbacks starter Eduardo Rodriguez hasn't pitched since a loss on July 10 in San Diego. He's given up five home runs in his past two starts.

Preview the July 23 matchup between the Houston Astros and Arizona Diamondbacks with odds over/under, game spread, betting lines and more.

BOTTOM LINE: The Houston Astros seek to build upon a three-game win streak with a victory over the Arizona Diamondbacks. Arizona has a 50-52 record overall and a 26-27 record at home. The Diamondbacks have the fifth-ranked team batting average in the NL at .253.

P HOENIX - After getting a pivotal win to avert a sweep in Seattle, the Houston Astros begin a three-game series Monday against the Arizona Diamondbacks. Rookie left-hander Colton Gordon (3-2, 4.67 ERA) gets the start for the Astros against Diamondbacks veteran righty Zac Gallen (7-10, 5.40).

Arizona Diamondbacks' Eduardo Rodriguez on holding the Houston Astros without a run for more than six innings on July 22, 2025.