After their miraculous victory over the Blue Jays on Saturday, the Mariners advanced into the Division Series to face the Astros, the best team in the American League. They’re a well-known opponent, even if the Mariners look a lot different than the last time they faced Houston. With nearly two-thirds of their regular season games scheduled for the first half of the season and the season series wrapped up by July, these two teams might not be as familiar with each other as you’d expect for two division rivals. Most importantly, the Astros haven’t faced Luis Castillo who is lined up to start potentially two games this series (more on that below).
AL Division Series Preview: Mariners (90-72) at Astros (106-56)
