The Diamondbacks suffered a tough defeat at home against the Houston Astros, dropping to 5 1/2 games back in the wild-card chase.

This article was originally published on www.si.com/mlb/astros as Astros Newly Promoted Brice Matthews Powers Team With Huge Night Against Diamondbacks. The Houston Astros have been piling up injuries as of late which is giving some other players an opportunity to come through for their ball club which includes Brice Matthews.

Gallen allowed a one-out single to Taylor Trammell in the second inning, then walked Mauricio Dubón. He struck out Chas McCormick and started Matthews with a curveball for a called strike. Gallen came back with a 94.2 mph fastball up in the zone. Matthews drove it 397 feet over the left-center field wall, giving the Astros an early 3-1 lead.

The Diamondbacks open a three-game series with the Houston Astros at Chase Field with Arizona's Zac Gallen facing Houston's Colton Gordon.

Could the Blue Jays add a former All-Star starting pitcher to help bolster their rotation for the pennant race?

In his return to Arizona, Christian Walker said the Diamondbacks didn't make a formal offer to keep him in free agency.