Everything you need to know about the MLB matchup between the Houston Astros and the Seattle Mariners, including how to watch and team news.

The Seattle Mariners face the Houston Astros in a regular season MLB game on Sunday, Sept. 21, 2025 (9/21/25) at Daikin Park ...

The Seattle Mariners aim for a sweep of the Houston Astros Sunday night at Daiken Park, looking to tighten their grip on the AL West race.

The Cleveland Guardians are fighting for the AL Central or a wildcard spot as they host the Texas Rangers today. Fans have two free streaming options to watch this game.

WEST SACRAMENTO, Calif. -- — The slumping Houston Astros fell out of playoff position, managing just three hits against Jeffrey Springs and three Athletics relievers in a 5-1 loss on Tuesday night.