Astros' playoff push dealt significant blow

The Houston Astros' playoff push received a devastating blow on Tuesday.

The Astros announced that closer Josh Hader was placed on the injured list with a strained left shoulder. Matt Kawahara of the Houston Chronicle reported that Hader will undergo further tests to determine the severity of the strain. 

Hader has been utterly dominant for the Astros in 2025. He had posted a 2.05 ERA and a 0.854 WHIP over his 52.2 innings, striking out 76 batters with 16 walks. Hader had notched 28 saves in 29 attempts as he continued to make a case as the best closer in the game.

As the July 31 trade deadline has passed, the Astros may have no option but to cobble the ninth inning together out of what they already have. Reliever Bennett Sousa recorded the one-out save on Monday and is second on the team with four saves. Fellow relievers Bryan Abreu, Bryan King and Steven Okert have impressed this season. The Astros, on paper at least, have plenty of depth in the bullpen.

Despite that depth, the ninth inning is now a question mark. Abreu has notched nine saves in his career, the most of any of the Astros' other late-inning options. A reunion with reliever Ryan Pressly, who was designated for assignment and subsequently released by the Cubs, could be a possibility. Pressly does have closing experience but struggled to a 4.35 ERA and a 1.524 WHIP over his 41.1 innings in Chicago.

Meanwhile, the Mariners have been white-hot since the trade deadline, winning nine of their last 10 games, including seven in a row heading into Tuesday. That surge has the Mariners just a game behind the Astros in a suddenly competitive AL West. The Guardians and Rangers are within 6.5 games of Houston, well within striking distance should the Astros falter. If Hader is on the injured list for an extended period, the Astros may be fighting for a playoff berth by the end of the season.