The Seattle Mariners and Houston Astros begin a pivotal three-game series Friday night that very well may determine who wins the American League West in 2025. The clubs will meet at Daikin Park, in Houston, knotted in more ways than one. Not only do they have identical 84-69 records, but they've also split their previous 10 head-to-head matchups. The winner of this series will be in first place and own the tiebreaker by Sunday night.

Series don't get much bigger than this, and so CBS Sports is taking the opportunity to provide you with all you need to know heading into Friday's opener. Let's start with some vital information: Day Mariners starter Astros starter Start time TV/streaming

Friday

Bryan Woo

Hunter Brown

8:10 pm ET fubo (Try for free)

Saturday

George Kirby

Framber V

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