Decision Day: How to untangle MLS' bloated playoff field - ESPN
Sounders face varied playoff fates on 'Decision Day' match vs. St. Louis City SC
Chaos multiplied: The craziest, most bizarre MLS playoff games of the 2010s - The Athletic
2020 Major League Soccer season - Wikipedia
Analysis: With playoff chances nearly dead, Sounders should turn attention to future
RSL Announces 2022 MLS Regular Season Schedule
Sources: Sounders pursuing transfer of AC Milan forward Keisuke Honda, but finish line may be a ways off
Your 2018 Soccer Almanac
Soccer 360 Issue 95: November / December 2021 Holiday Issue by Soccer 360 Magazine - Issuu
Seattle's playoff hopes surge vs. Austin: “Today you see the real Sounders”
2023 USL2 Playoffs at Interbay Stadium in Seattle, WA - Multiple dates through July 23 - EverOut Seattle
Boehm's 2023 Soccer Almanac
Golden Gashi: Colorado's international star scores goals galore and more