2021 MLB playoff schedule: Red Sox advance to face the Rays; here are the matchups

MLB magic numbers, playoff matchups: Phillies punch ticket; Brewers clinch division (9/27/23)

MLB playoffs: The most important series remaining, including Red Sox-Yankees and Padres-Giants

2021 MLB Playoff and World Series Schedule

Red Sox rout Astros in Game 3 to grab ALCS lead

2021 MLB playoffs - Our predictions from the wild-card games through the World Series - ESPN

Red Sox Notebook: ALCS matchup with Astros is ripe with storylines

MLB playoffs 2021 - Who's going to the World Series? Answering the big questions left for Astros-Red Sox and Braves-Dodgers - ESPN

Rays see Red Sox as 'a good matchup' but would have welcomed Yankees, too

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MLB standings 2021: Potential playoff matchups, seeding, teams who have clinched - DraftKings Network

MLB playoffs: How extra innings rule impacts postseason - Sports Illustrated

How does MLB's new playoff format work? What you need to know ahead of postseason - The Athletic